Patent Application
20160108008
The present invention relates to substituted N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compounds and the N-oxides and salts thereof and to compositions comprising the same. The invention also relates to the use of the N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compounds or of the compositions comprising such compounds for controlling unwanted vegetation. Furthermore, the invention relates to methods of applying such compounds.
For the purposes of controlling unwanted vegetation, especially in crops, there is an ongoing need for new herbicides which have high activities and selectivities together with a substantial lack of toxicity for humans and animals.
WO 2011/035874 describes N-(1,2,5-oxadiazol-3-yl)benzamides carrying 3 substituents in the 2-, 3- and 4-positions of the phenyl ring and their use as herbicides.
WO 2012/028579 describes N-(tetrazol-4-yl)- and N-(triazol-3-yl)arylcarboxylic acid amides carrying 3 substituents in the 2-, 3- and 4-positions of the aryl ring and their use as herbicides.
The compounds of the prior art often suffer from insufficient herbicidal activity in particular at low application rates and/or unsatisfactory selectivity resulting in a low compatibility with crop plants.
Accordingly, it is an object of the present invention to provide further N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compounds having a strong herbicidal activity, in particular even at low application rates, a sufficiently low toxicity for humans and animals and/or a high compatibility with crop plants. The N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compounds should also show a broad activity spectrum against a large number of different unwanted plants.
These and further objectives are achieved by the compounds of formula I defined below and their N-oxides and also their agriculturally suitable salts.
It has been found that the above objectives can be achieved by substituted N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compounds of the general formula I, as defined below, including their N-oxides and their salts, in particular their agriculturally suitable salts.
Therefore, in a first aspect the present invention relates to compounds of formula I,
where
The compounds of the present invention, i.e. the compounds of formula I, their N-oxides, or their salts are particularly useful for controlling unwanted vegetation. Therefore, the invention also relates to the use of a compound of the present invention, an N-oxide or a salt thereof or of a composition comprising at least one compound of the invention, an N-oxide or an agriculturally suitable salt thereof for combating or controlling unwanted vegetation.
The invention also relates to a composition comprising at least one compound according to the invention, including an N-oxide or a salt thereof, and at least one auxiliary. In particular, the invention relates to an agricultural composition comprising at least one compound according to the invention including an N-oxide or an agriculturally suitable salt thereof, and at least one auxiliary customary for crop protection formulations.
The present invention also relates to a method for combating or controlling unwanted vegetation, which method comprises allowing a herbicidally effective amount of at least one compound according to the invention, including an N-oxide or a salt thereof, to act on unwanted plants, their seed and/or their habitat.
Depending on the substitution pattern, the compounds of formula I may have one or more centers of chirality, in which case they are present as mixtures of enantiomers or diastereomers. The invention provides both the pure enantiomers or pure diastereomers of the compounds of formula I, and their mixtures and the use according to the invention of the pure enantiomers or pure diastereomers of the compound of formula I or its mixtures. Suitable compounds of formula I also include all possible geometrical stereoisomers (cis/trans isomers) and mixtures thereof.
Cis/trans isomers may be present with respect to an alkene, carbon-nitrogen double-bond, nitrogen-sulfur double bond or amide group. The term “stereoisomer(s)” encompasses both optical isomers, such as enantiomers or diastereomers, the latter existing due to more than one center of chirality in the molecule, as well as geometrical isomers (cis/trans isomers).
Depending on the substitution pattern, the compounds of formula I may be present in the form of their tautomers. Hence the invention also relates to the tautomers of the formula I and the stereoisomers, salts and N-oxides of said tautomers.
The term “N-oxide” includes any compound of the present invention which has at least one tertiary nitrogen atom that is oxidized to an N-oxide moiety. N-oxides in compounds of formula I can in particular be prepared by oxidizing the ring nitrogen atom(s) of the N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide ring with a suitable oxidizing agent, such as peroxo carboxylic acids or other peroxides, or the ring nitrogen atom(s) of a heterocyclic substituent R, R1, R2 or R3.
The present invention moreover relates to compounds as defined herein, wherein one or more of the atoms depicted in formula I have been replaced by its stable, preferably nonradioactive isotope (e.g., hydrogen by deuterium, 12C by 13C, 14N by 15N, 16O by 18O) and in particular wherein at least one hydrogen atom has been replaced by a deuterium atom. Of course, the compounds according to the invention contain more of the respective isotope than this naturally occurs and thus is anyway present in the compounds of formula I.
The compounds of the present invention may be amorphous or may exist in one ore more different crystalline states (polymorphs) which may have different macroscopic properties such as stability or show different biological properties such as activities. The present invention includes both amorphous and crystalline compounds of formula I, their enantiomers or diastereomers, mixtures of different crystalline states of the respective compound of formula I, its enantiomers or diastereomers, as well as amorphous or crystalline salts thereof.
Salts of the compounds of the present invention are preferably agriculturally suitable salts. They can be formed in a customary method, e.g. by reacting the compound with an acid if the compound of the present invention has a basic functionality or by reacting the compound with a suitable base if the compound of the present invention has an acidic functionality.
Useful agriculturally suitable salts are especially the salts of those cations or the acid addition salts of those acids whose cations and anions, respectively, do not have any adverse effect on the herbicidal action of the compounds according to the present invention. Suitable cations are in particular the ions of the alkali metals, preferably lithium, sodium and potassium, of the alkaline earth metals, preferably calcium, magnesium and barium, and of the transition metals, preferably manganese, copper, zinc and iron, and also ammonium (NH4+) and substituted ammonium in which one to four of the hydrogen atoms are replaced by C1-C4-alkyl, C1-C4-hydroxyalkyl, C1-C4-alkoxy, C1-C4-alkoxy-C1-C4-alkyl, hydroxy-C1-C4-alkoxy-C1-C4-alkyl, phenyl or benzyl. Examples of substituted ammonium ions comprise methylammonium, isopropylammonium, dimethylammonium, diisopropylammonium, trimethylammonium, tetramethylammonium, tetraethylammonium, tetrabutylammonium, 2-hydroxyethylammonium, 2-(2-hydroxyethoxy)ethylammonium, bis(2-hydroxyethyl)ammonium, benzyltrimethylammonium and benzyl-triethylammonium, furthermore phosphonium ions, sulfonium ions, preferably tri(C1-C4-alkyl)sulfonium, and sulfoxonium ions, preferably tri(C1-C4-alkyl)sulfoxonium.
Anions of useful acid addition salts are primarily chloride, bromide, fluoride, hydrogensulfate, sulfate, dihydrogenphosphate, hydrogenphosphate, phosphate, nitrate, bicarbonate, carbonate, hexafluorosilicate, hexafluorophosphate, benzoate, and the anions of C1-C4-alkanoic acids, preferably formate, acetate, propionate and butyrate. They can be formed by reacting compounds of the present invention with an acid of the corresponding anion, preferably with hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid or nitric acid.
The term “undesired vegetation” (“weeds”) is understood to include any vegetation growing in non-crop-areas or at a crop plant site or locus of seeded and otherwise desired crop, where the vegetation is any plant species, including their germinant seeds, emerging seedlings and established vegetation, other than the seeded or desired crop (if any). Weeds, in the broadest sense, are plants considered undesirable in a particular location.
The organic moieties mentioned in the above definitions of the variables are—like the term halogen—collective terms for individual listings of the individual group members. The prefix Cn-Cm indicates in each case the possible number of carbon atoms in the group.
The term “halogen” denotes in each case fluorine, bromine, chlorine or iodine, in particular fluorine, chlorine or bromine.
The term “partially or completely halogenated” will be taken to mean that 1 or more, e.g. 1, 2, 3, 4 or 5 or all of the hydrogen atoms of a given radical have been replaced by a halogen atom, in particular by fluorine or chlorine. A partially or completely halogenated radical is termed below also “halo-radical”. For example, partially or completely halogenated alkyl is also termed haloalkyl.
The term “alkyl” as used herein (and in the alkyl moieties of other groups comprising an alkyl group, e.g. alkoxy, alkylamino, alkylcarbonyl, alkoxycarbonyl, alkylthio, alkylsulfonyl and alkoxyalkyl) denotes in each case a straight-chain or branched alkyl group having usually from 1 to 10 carbon atoms, frequently from 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms and in particular from 1 to 3 carbon atoms. Examples of C1-C4-alkyl are methyl, ethyl, n-propyl, isopropyl, n-butyl, 2-butyl (sec-butyl), isobutyl and tert-butyl. Examples for C1-C6-alkyl are, apart those mentioned for C1-C4-alkyl, n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, 1-ethylpropyl, n-hexyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1,1-dimethylbutyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl, 2,3-dimethylbutyl, 3,3-dimethylbutyl, 1-ethylbutyl, 2-ethylbutyl, 1,1,2-trimethylpropyl, 1,2,2-trimethylpropyl, 1-ethyl-1-methylpropyl and 1-ethyl-2-methylpropyl. Examples for C1-C10-alkyl are, apart those mentioned for C1-C6-alkyl, n-heptyl, 1-methylhexyl, 2-methylhexyl, 3-methylhexyl, 4-methylhexyl, 5-methylhexyl, 1-ethylpentyl, 2-ethylpentyl, 3-ethylpentyl, n-octyl, 1-methyloctyl, 2-methylheptyl, 1-ethylhexyl, 2-ethylhexyl, 1,2-dimethylhexyl, 1-propylpentyl, 2-propylpentyl, nonyl, decyl, 2-propylheptyl and 3-propylheptyl.
The term “alkylene” (or alkanediyl) as used herein in each case denotes an alkyl radical as defined above, wherein one hydrogen atom at any position of the carbon backbone is replaced by one further binding site, thus forming a bivalent moiety.
The term “haloalkyl” as used herein (and in the haloalkyl moieties of other groups comprising a haloalkyl group, e.g. haloalkoxy, haloalkylthio, haloalkylcarbonyl, haloalkylsulfonyl and haloalkylsulfinyl) denotes in each case a straight-chain or branched alkyl group having usually from 1 to 8 carbon atoms (“C1-C8-haloalkyl”), frequently from 1 to 6 carbon atoms (“C1-C6-haloalkyl”), more frequently 1 to 4 carbon atoms (“C1-C4-haloalkyl”), wherein the hydrogen atoms of this group are partially or totally replaced with halogen atoms. Preferred haloalkyl moieties are selected from C1-C4-haloalkyl, more preferably from C1-C2-haloalkyl, more preferably from halomethyl, in particular from C1-C2-fluoroalkyl. Halomethyl is methyl in which 1, 2 or 3 of the hydrogen atoms are replaced by halogen atoms. Examples are bromomethyl, chloromethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl and the like. Examples for C1-C2-fluoroalkyl are fluoromethyl, difluoromethyl, trifluoromethyl, 1-fluoroethyl, 2-fluoroethyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, pentafluoroethyl, and the like. Examples for C1-C2-haloalkyl are, apart those mentioned for C1-C2-fluoroalkyl, chloromethyl, dichloromethyl, trichloromethyl, bromomethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl, 1-chloroethyl, 2-chloroethyl, 2,2,dichloroethyl, 2,2,2-trichloroethyl, 2-chloro-2-fluoroethyl, 2-chloro-2,2-difluoroethyl, 2,2-dichloro-2-fluoroethyl, 1-bromoethyl, and the like. Examples for C1-C4-haloalkyl are, apart those mentioned for C1-C2-haloalkyl, 1-fluoropropyl, 2-fluoropropyl, 3-fluoropropyl, 3,3-difluoropropyl, 3,3,3-trifluoropropyl, heptafluoropropyl, 1,1,1-trifluoroprop-2-yl, 3-chloropropyl, 4-chlorobutyl and the like.
The term “cycloalkyl” as used herein (and in the cycloalkyl moieties of other groups comprising a cycloalkyl group, e.g. cycloalkoxy and cycloalkylalkyl) denotes in each case a mono- or bicyclic cycloaliphatic radical having usually from 3 to 10 carbon atoms (“C3-C10-cycloalkyl”), preferably 3 to 7 carbon atoms (“C3-C7-cycloalkyl”) or in particular 3 to 6 carbon atoms (“C3-C6-cycloalkyl”). Examples of monocyclic radicals having 3 to 6 carbon atoms comprise cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl. Examples of monocyclic radicals having 3 to 7 carbon atoms comprise cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl. Examples of bicyclic radicals having 7 or 8 carbon atoms comprise bicyclo[2.1.1]hexyl, bicyclo[2.2.1]heptyl, bicyclo[3.1.1]heptyl, bicyclo[2.2.1]heptyl, bicyclo[2.2.2]octyl and bicyclo[3.2.1]octyl.
The term “halocycloalkyl” as used herein (and in the halocycloalkyl moieties of other groups comprising an halocycloalkyl group, e.g. halocycloalkylmethyl) denotes in each case a mono- or bicyclic cycloaliphatic radical having usually from 3 to 10 carbon atoms, preferably 3 to 7 carbon atoms or in particular 3 to 6 carbon atoms, wherein at least one, e.g. 1, 2, 3, 4 or 5 of the hydrogen atoms are replaced by halogen, in particular by fluorine or chlorine. Examples are 1- and 2-fluorocyclopropyl, 1,2-, 2,2- and 2,3-difluorocyclopropyl, 1,2,2-trifluorocyclopropyl, 2,2,3,3-tetrafluorocyclpropyl, 1- and 2-chlorocyclopropyl, 1,2-, 2,2- and 2,3-dichlorocyclopropyl, 1,2,2-trichlorocyclopropyl, 2,2,3,3-tetrachlorocyclpropyl, 1-, 2- and 3-fluorocyclopentyl, 1,2-, 2,2-, 2,3-, 3,3-, 3,4-, 2,5-difluorocyclopentyl, 1-, 2- and 3-chlorocyclopentyl, 1,2-, 2,2-, 2,3-, 3,3-, 3,4-, 2,5-dichlorocyclopentyl and the like.
The term “cycloalkyl-alkyl” used herein denotes a cycloalkyl group, as defined above, which is bound to the remainder of the molecule via an alkylene group. The term “C3-C7-cycloalkyl-C1-C4-alkyl” refers to a C3-C7-cycloalkyl group as defined above which is bound to the remainder of the molecule via a C1-C4-alkyl group, as defined above. Examples are cyclopropylmethyl, cyclopropylethyl, cyclopropylpropyl, cyclobutylmethyl, cyclobutylethyl, cyclobutylpropyl, cyclopentylmethyl, cyclopentylethyl, cyclopentylpropyl, cyclohexylmethyl, cyclohexylethyl, cyclohexylpropyl, and the like.
The term “alkenyl” as used herein denotes in each case a monounsaturated straight-chain or branched hydrocarbon radical having usually 2 to 8 (“C2-C8-alkenyl”), preferably 2 to 6 carbon atoms (“C2-C6-alkenyl”), in particular 2 to 4 carbon atoms (“C2-C4-alkenyl”), and a double bond in any position, for example C2-C4-alkenyl, such as ethenyl, 1-propenyl, 2-propenyl, 1-methylethenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-methyl-1-propenyl, 2-methyl-1-propenyl, 1-methyl-2-propenyl or 2-methyl-2-propenyl; C2-C6-alkenyl, such as ethenyl, 1-propenyl, 2-propenyl, 1-methylethenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-methyl-1-propenyl, 2-methyl-1-propenyl, 1-methyl-2-propenyl, 2-methyl-2-propenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-methyl-1-butenyl, 2-methyl-1-butenyl, 3-methyl-1-butenyl, 1-methyl-2-butenyl, 2-methyl-2-butenyl, 3-methyl-2-butenyl, 1-methyl-3-butenyl, 2-methyl-3-butenyl, 3-methyl-3-butenyl, 1,1-dimethyl-2-propenyl, 1,2-dimethyl-1-propenyl, 1,2-dimethyl-2-propenyl, 1-ethyl-1-propenyl, 1-ethyl-2-propenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl, 4-hexenyl, 5-hexenyl, 1-methyl-1-pentenyl, 2-methyl-1-pentenyl, 3-methyl-1-pentenyl, 4-methyl-1-pentenyl, 1-methyl-2-pentenyl, 2-methyl-2-pentenyl, 3-methyl-2-pentenyl, 4-methyl-2-pentenyl, 1-methyl-3-pentenyl, 2-methyl-3-pentenyl, 3-methyl-3-pentenyl, 4-methyl-3-pentenyl, 1-methyl-4-pentenyl, 2-methyl-4-pentenyl, 3-methyl-4-pentenyl, 4-methyl-4-pentenyl, 1,1-dimethyl-2-butenyl, 1,1-dimethyl-3-butenyl, 1,2-dimethyl-1-butenyl, 1,2-dimethyl-2-butenyl, 1,2-dimethyl-3-butenyl, 1,3-dimethyl-1-butenyl, 1,3-dimethyl-2-butenyl, 1,3-dimethyl-3-butenyl, 2,2-dimethyl-3-butenyl, 2,3-dimethyl-1-butenyl, 2,3-dimethyl-2-butenyl, 2,3-dimethyl-3-butenyl, 3,3-dimethyl-1-butenyl, 3,3-dimethyl-2-butenyl, 1-ethyl-1-butenyl, 1-ethyl-2-butenyl, 1-ethyl-3-butenyl, 2-ethyl-1-butenyl, 2-ethyl-2-butenyl, 2-ethyl-3-butenyl, 1,1,2-trimethyl-2-propenyl, 1-ethyl-1-methyl-2-propenyl, 1-ethyl-2-methyl-1-propenyl, 1-ethyl-2-methyl-2-propenyl and the like, or C2-C8-alkenyl, such as the radicals mentioned for C2-C6-alkenyl and additionally 1-heptenyl, 2-heptenyl, 3-heptenyl, 1-octenyl, 2-octenyl, 3-octenyl, 4-octenyl and the positional isomers thereof.
The term “haloalkenyl” as used herein, which may also be expressed as “alkenyl which is substituted by halogen”, and the haloalkenyl moieties in haloalkenyloxy and the like refers to unsaturated straight-chain or branched hydrocarbon radicals having 2 to 8 (“C2-C8-haloalkenyl”) or 2 to 6 (“C2-C6-haloalkenyl”) or 2 to 4 (“C2-C4-haloalkenyl”) carbon atoms and a double bond in any position, where some or all of the hydrogen atoms in these groups are replaced by halogen atoms as mentioned above, in particular fluorine, chlorine and bromine, for example chlorovinyl, chloroallyl and the like.
The term “alkynyl” as used herein denotes unsaturated straight-chain or branched hydrocarbon radicals having usually 2 to 8 (“C2-C8-alkynyl”), frequently 2 to 6 (“C2-C6-alkynyl”), preferably 2 to 4 carbon atoms (“C2-C4-alkynyl”) and a triple bond in any position, for example C2-C4-alkynyl, such as ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1-methyl-2-propynyl and the like, C2-C6-alkynyl, such as ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1-methyl-2-propynyl, 1-pentynyl, 2-pentynyl, 3-pentynyl, 4-pentynyl, 1-methyl-2-butynyl, 1-methyl-3-butynyl, 2-methyl-3-butynyl, 3-methyl-1-butynyl, 1,1-dimethyl-2-propynyl, 1-ethyl-2-propynyl, 1-hexynyl, 2-hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl, 1-methyl-2-pentynyl, 1-methyl-3-pentynyl, 1-methyl-4-pentynyl, 2-methyl-3-pentynyl, 2-methyl-4-pentynyl, 3-methyl-1-pentynyl, 3-methyl-4-pentynyl, 4-methyl-1-pentynyl, 4-methyl-2-pentynyl, 1,1-dimethyl-2-butynyl, 1,1-dimethyl-3-butynyl, 1,2-dimethyl-3-butynyl, 2,2-dimethyl-3-butynyl, 3,3-dimethyl-1-butynyl, 1-ethyl-2-butynyl, 1-ethyl-3-butynyl, 2-ethyl-3-butynyl, 1-ethyl-1-methyl-2-propynyl and the like.
The term “haloalkynyl” as used herein, which is also expressed as “alkynyl which is substituted by halogen”, refers to unsaturated straight-chain or branched hydrocarbon radicals having usually 2 to 8 carbon atoms (“C2-C8-haloalkynyl”), frequently 2 to 6 (“C2-C6-haloalkynyl”), preferably 2 to 4 carbon atoms (“C2-C4-haloalkynyl”), and a triple bond in any position (as mentioned above), where some or all of the hydrogen atoms in these groups are replaced by halogen atoms as mentioned above, in particular fluorine, chlorine and bromine.
The term “alkoxy” as used herein denotes in each case a straight-chain or branched alkyl group usually having from 1 to 8 carbon atoms (“C1-C8-alkoxy”), frequently from 1 to 6 carbon atoms (“C1-C6-alkoxy”), preferably 1 to 4 carbon atoms (“C1-C4-alkoxy”), which is bound to the remainder of the molecule via an oxygen atom. C1-C2-Alkoxy is methoxy or ethoxy. C1-C4-Alkoxy is additionally, for example, n-propoxy, 1-methylethoxy (isopropoxy), butoxy, 1-methylpropoxy (sec-butoxy), 2-methylpropoxy (isobutoxy) or 1,1-dimethylethoxy (tert-butoxy). C1-C6-Alkoxy is additionally, for example, pentoxy, 1-methylbutoxy, 2-methylbutoxy, 3-methylbutoxy, 1,1-dimethylpropoxy, 1,2-dimethylpropoxy, 2,2-dimethylpropoxy, 1-ethylpropoxy, hexoxy, 1-methylpentoxy, 2-methylpentoxy, 3-methylpentoxy, 4-methylpentoxy, 1,1-dimethylbutoxy, 1,2-dimethylbutoxy, 1,3-dimethylbutoxy, 2,2-dimethylbutoxy, 2,3-dimethylbutoxy, 3,3-dimethylbutoxy, 1-ethylbutoxy, 2-ethylbutoxy, 1,1,2-trimethylpropoxy, 1,2,2-trimethylpropoxy, 1-ethyl-1-methylpropoxy or 1-ethyl-2-methylpropoxy. C1-C8-Alkoxy is additionally, for example, heptyloxy, octyloxy, 2-ethylhexyloxy and positional isomers thereof.
The term “haloalkoxy” as used herein denotes in each case a straight-chain or branched alkoxy group, as defined above, having from 1 to 8 carbon atoms (“C1-C8-haloalkoxy”), frequently from 1 to 6 carbon atoms (“C1-C6-haloalkoxy”), preferably 1 to 4 carbon atoms (“C1-C4-haloalkoxy”), more preferably 1 to 3 carbon atoms (“C1-C3-haloalkoxy”), wherein the hydrogen atoms of this group are partially or totally replaced with halogen atoms, in particular fluorine atoms. C1-C2-Haloalkoxy is, for example, OCH2F, OCHF2, OCF3, OCH2Cl, OCHCl2, OCCl3, chlorofluoromethoxy, dichlorofluoromethoxy, chlorodifluoromethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2-bromoethoxy, 2-iodoethoxy, 2,2-difluoroethoxy, 2,2,2-trifluoroethoxy, 2-chloro-2-fluoroethoxy, 2-chloro-2,2-difluoroethoxy, 2,2-dichloro-2-fluoroethoxy, 2,2,2-trichloroethoxy or OC2F5. C1-C4-Haloalkoxy is additionally, for example, 2-fluoropropoxy, 3-fluoropropoxy, 2,2-difluoropropoxy, 2,3-difluoropropoxy, 2-chloropropoxy, 3-chloropropoxy, 2,3-dichloropropoxy, 2-bromopropoxy, 3-bromopropoxy, 3,3,3-trifluoropropoxy, 3,3,3-trichloropropoxy, OCH2—C2F5, OCF2—C2F5, 1-(CH2F)-2-fluoroethoxy, 1-(CH2Cl)-2-chloroethoxy, 1-(CH2Br)-2-bromoethoxy, 4-fluorobutoxy, 4-chlorobutoxy, 4-bromobutoxy or nonafluorobutoxy. C1-C6-Haloalkoxy is additionally, for example, 5-fluoropentoxy, 5-chloropentoxy, 5-brompentoxy, 5-iodopentoxy, undecafluoropentoxy, 6-fluorohexoxy, 6-chlorohexoxy, 6-bromohexoxy, 6-iodohexoxy or dodecafluorohexoxy.
The term “alkoxyalkyl” as used herein denotes in each case alkyl usually comprising 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, wherein 1 carbon atom carries an alkoxy radical usually comprising 1 to 8, frequently 1 to 6, in particular 1 to 4, carbon atoms as defined above. “C1-C6-alkoxy-C1-C6-alkyl” is a C1-C6-alkyl group, as defined above, in which one hydrogen atom is replaced by a C1-C6-alkoxy group, as defined above. Examples are CH2OCH3, CH2—OC2H5, n-propoxymethyl, CH2—OCH(CH3)2, n-butoxymethyl, (1-methylpropoxy)-methyl, (2-methylpropoxy)methyl, CH2—OC(CH3)3, 2-(methoxy)ethyl, 2-(ethoxy)ethyl, 2-(n-propoxy)-ethyl, 2-(1-methylethoxy)-ethyl, 2-(n-butoxy)ethyl, 2-(1-methylpropoxy)-ethyl, 2-(2-methylpropoxy)-ethyl, 2-(1,1-dimethylethoxy)-ethyl, 2-(methoxy)-propyl, 2-(ethoxy)-propyl, 2-(n-propoxy)-propyl, 2-(1-methylethoxy)-propyl, 2-(n-butoxy)-propyl, 2-(1-methylpropoxy)-propyl, 2-(2-methylpropoxy)propyl, 2-(1,1-dimethylethoxy)-propyl, 3-(methoxy)-propyl, 3-(ethoxy)-propyl, 3-(n-propoxy)propyl, 3-(1-methylethoxy)-propyl, 3-(n-butoxy)-propyl, 3-(1-methylpropoxy)-propyl, 3-(2-methylpropoxy)-propyl, 3-(1,1-dimethylethoxy)-propyl, 2-(methoxy)-butyl, 2-(ethoxy)-butyl, 2-(n-propoxy)-butyl, 2-(1-methylethoxy)-butyl, 2-(n-butoxy)-butyl, 2-(1-methylpropoxy)-butyl, 2-(2-methyl-propoxy)-butyl, 2-(1,1-dimethylethoxy)-butyl, 3-(methoxy)-butyl, 3-(ethoxy)-butyl, 3-(n-propoxy)-butyl, 3-(1-methylethoxy)-butyl, 3-(n-butoxy)-butyl, 3-(1-methylpropoxy)-butyl, 3-(2-methylpropoxy)-butyl, 3-(1,1-dimethylethoxy)-butyl, 4-(methoxy)-butyl, 4-(ethoxy)-butyl, 4-(n-propoxy)-butyl, 4-(1-methylethoxy)-butyl, 4-(n-butoxy)-butyl, 4-(1-methylpropoxy)-butyl, 4-(2-methylpropoxy)-butyl, 4-(1,1-dimethylethoxy)-butyl and the like.
The term “haloalkoxy-alkyl” as used herein denotes in each case alkyl as defined above, usually comprising 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, wherein 1 carbon atom carries an haloalkoxy radical as defined above, usually comprising 1 to 8, frequently 1 to 6, in particular 1 to 4, carbon atoms as defined above. Examples are fluoromethoxymethyl, difluoromethoxymethyl, trifluoromethoxymethyl, 1-fluoroethoxymethyl, 2-fluoroethoxymethyl, 1,1-difluoroethoxymethyl, 1,2-difluoroethoxymethyl, 2,2-difluoroethoxymethyl, 1,1,2-trifluoroethoxymethyl, 1,2,2-trifluoroethoxymethyl, 2,2,2-trifluoroethoxymethyl, pentafluoroethoxymethyl, 1-fluoroethoxy-1-ethyl, 2-fluoroethoxy-1-ethyl, 1,1-difluoroethoxy-1-ethyl, 1,2-difluoroethoxy-1-ethyl, 2,2-difluoroethoxy-1-ethyl, 1,1,2-trifluoroethoxy-1-ethyl, 1,2,2-trifluoroethoxy-1-ethyl, 2,2,2-trifluoroethoxy-1-ethyl, pentafluoroethoxy-1-ethyl, 1-fluoroethoxy-2-ethyl, 2-fluoroethoxy-2-ethyl, 1,1-difluoroethoxy-2-ethyl, 1,2-difluoroethoxy-2-ethyl, 2,2-difluoroethoxy-2-ethyl, 1,1,2-trifluoroethoxy-2-ethyl, 1,2,2-trifluoroethoxy-2-ethyl, 2,2,2-trifluoroethoxy-2-ethyl, pentafluoroethoxy-2-ethyl, and the like.
The term “alkylthio” (also alkylsulfanyl, “alkyl-S” or “alkyl-S(O)k” (wherein k is 0)) as used herein denotes in each case a straight-chain or branched saturated alkyl group as defined above, usually comprising 1 to 8 carbon atoms (“C1-C8-alkylthio”), frequently comprising 1 to 6 carbon atoms (“C1-C6-alkylthio”), preferably 1 to 4 carbon atoms (“C1-C4-alkylthio”), which is attached via a sulfur atom at any position in the alkyl group. C1-C2-Alkylthio is methylthio or ethylthio. C1-C4-Alkylthio is additionally, for example, n-propylthio, 1-methylethylthio (isopropylthio), butylthio, 1-methylpropylthio (sec-butylthio), 2-methylpropylthio (isobutylthio) or 1,1-dimethylethylthio (tert-butylthio). C1-C6-Alkylthio is additionally, for example, pentylthio, 1-methylbutylthio, 2-methylbutylthio, 3-methylbutylthio, 1,1-dimethylpropylthio, 1,2-dimethylpropylthio, 2,2-dimethylpropylthio, 1-ethylpropylthio, hexylthio, 1-methylpentylthio, 2-methylpentylthio, 3-methylpentylthio, 4-methylpentylthio, 1,1-dimethylbutylthio, 1,2-dimethylbutylthio, 1,3-dimethylbutylthio, 2,2-dimethylbutylthio, 2,3-dimethylbutylthio, 3,3-dimethylbutylthio, 1-ethylbutylthio, 2-ethylbutylthio, 1,1,2-trimethylpropylthio, 1,2,2-trimethylpropylthio, 1-ethyl-1-methylpropylthio or 1-ethyl-2-methylpropylthio. C1-C8-Alkylthio is additionally, for example, heptylthio, octylthio, 2-ethylhexylthio and positional isomers thereof.
The term “haloalkylthio” as used herein refers to an alkylthio group as defined above wherein the hydrogen atoms are partially or completely substituted by fluorine, chlorine, bromine and/or iodine. C1-C2-Haloalkylthio is, for example, SCH2F, SCHF2, SCF3, SCH2Cl, SCHC2, SCCl3, chlorofluoromethylthio, dichlorofluoromethylthio, chlorodifluoromethylthio, 2-fluoroethylthio, 2-chloroethylthio, 2-bromoethylthio, 2-iodoethylthio, 2,2-difluoroethylthio, 2,2,2-trifluoroethylthio, 2-chloro-2-fluoroethylthio, 2-chloro-2,2-difluoroethylthio, 2,2-dichloro-2-fluoroethylthio, 2,2,2-trichloroethylthio or SC2F5. C1-C4-Haloalkylthio is additionally, for example, 2-fluoropropylthio, 3-fluoropropylthio, 2,2-difluoropropylthio, 2,3-difluoropropylthio, 2-chloropropylthio, 3-chloropropylthio, 2,3-dichloropropylthio, 2-bromopropylthio, 3-bromopropylthio, 3,3,3-trifluoropropylthio, 3,3,3-trichloropropylthio, SCH2—C2F5, SCF2—C2F5, 1-(CH2F)-2-fluoroethylthio, 1-(CH2Cl)-2-chloroethylthio, 1-(CH2Br)-2-bromoethylthio, 4-fluorobutylthio, 4-chlorobutylthio, 4-bromobutylthio or nonafluorobutylthio. C1-C6-Haloalkylthio is additionally, for example, 5-fluoropentylthio, 5-chloropentylthio, 5-brompentylthio, 5-iodopentylthio, undecafluoropentylthio, 6-fluorohexylthio, 6-chlorohexylthio, 6-bromohexylthio, 6-iodohexylthio or dodecafluorohexylthio.
The terms “alkylsulfinyl” and “alkyl-S(O)k” (wherein k is 1) are equivalent and, as used herein, denote an alkyl group, as defined above, attached via a sulfinyl [S(O)] group. For example, the term “C1-C2-alkylsulfinyl” refers to a C1-C2-alkyl group, as defined above, attached via a sulfinyl [S(O)] group. The term “C1-C4-alkylsulfinyl” refers to a C1-C4-alkyl group, as defined above, attached via a sulfinyl [S(O)] group. The term “C1-C6-alkylsulfinyl” refers to a C1-C6-alkyl group, as defined above, attached via a sulfinyl [S(O)] group. C1-C2-alkylsulfinyl is methylsulfinyl or ethylsulfinyl. C1-C4-alkylsulfinyl is additionally, for example, n-propylsulfinyl, 1-methylethylsulfinyl (isopropylsulfinyl), butylsulfinyl, 1-methylpropylsulfinyl (sec-butylsulfinyl), 2-methylpropylsulfinyl (isobutylsulfinyl) or 1,1-dimethylethylsulfinyl (tert-butylsulfinyl). C1-C6-alkylsulfinyl is additionally, for example, pentylsulfinyl, 1-methylbutylsulfinyl, 2-methylbutylsulfinyl, 3-methylbutylsulfinyl, 1,1-dimethylpropylsulfinyl, 1,2-dimethylpropylsulfinyl, 2,2-dimethylpropylsulfinyl, 1-ethylpropylsulfinyl, hexylsulfinyl, 1-methylpentylsulfinyl, 2-methylpentylsulfinyl, 3-methylpentylsulfinyl, 4-methylpentylsulfinyl, 1,1-dimethylbutylsulfinyl, 1,2-dimethylbutylsulfinyl, 1,3-dimethylbutylsulfinyl, 2,2-dimethylbutylsulfinyl, 2,3-dimethylbutylsulfinyl, 3,3-dimethylbutylsulfinyl, 1-ethylbutylsulfinyl, 2-ethylbutylsulfinyl, 1,1,2-trimethylpropylsulfinyl, 1,2,2-trimethylpropylsulfinyl, 1-ethyl-1-methylpropylsulfinyl or 1-ethyl-2-methylpropylsulfinyl.
The terms “alkylsulfonyl” and “alkyl-S(O)k” (wherein k is 2) are equivalent and, as used herein, denote an alkyl group, as defined above, attached via a sulfonyl [S(O)2] group. The term “C1-C2-alkylsulfonyl” refers to a C1-C2-alkyl group, as defined above, attached via a sulfonyl [S(O)2] group. The term “C1-C4-alkylsulfonyl” refers to a C1-C4-alkyl group, as defined above, attached via a sulfonyl [S(O)2] group. The term “C1-C6-alkylsulfonyl” refers to a C1-C6-alkyl group, as defined above, attached via a sulfonyl [S(O)2] group. C1-C2-alkylsulfonyl is methylsulfonyl or ethylsulfonyl. C1-C4-alkylsulfonyl is additionally, for example, n-propylsulfonyl, 1-methylethylsulfonyl (isopropylsulfonyl), butylsulfonyl, 1-methylpropylsulfonyl (secbutylsulfonyl), 2-methylpropylsulfonyl (isobutylsulfonyl) or 1,1-dimethylethylsulfonyl (tertbutylsulfonyl). C1-C6-alkylsulfonyl is additionally, for example, pentylsulfonyl, 1-methylbutylsulfonyl, 2-methylbutylsulfonyl, 3-methylbutylsulfonyl, 1,1-dimethylpropylsulfonyl, 1,2-dimethylpropylsulfonyl, 2,2-dimethylpropylsulfonyl, 1-ethylpropylsulfonyl, hexylsulfonyl, 1-methylpentylsulfonyl, 2-methylpentylsulfonyl, 3-methylpentylsulfonyl, 4-methylpentylsulfonyl, 1,1-dimethylbutylsulfonyl, 1,2-dimethylbutylsulfonyl, 1,3-dimethylbutylsulfonyl, 2,2-dimethylbutylsulfonyl, 2,3-dimethylbutylsulfonyl, 3,3-dimethylbutylsulfonyl, 1-ethylbutylsulfonyl, 2-ethylbutylsulfonyl, 1,1,2-trimethylpropylsulfonyl, 1,2,2-trimethylpropylsulfonyl, 1-ethyl-1-methylpropylsulfonyl or 1-ethyl-2-methylpropylsulfonyl.
The term “alkylamino” as used herein denotes in each case a group R*HN—, wherein R* is a straight-chain or branched alkyl group usually having from 1 to 6 carbon atoms (“C1-C6-alkylamino”), preferably 1 to 4 carbon atoms (“C1-C4-alkylamino”). Examples of C1-C6-alkylamino are methylamino, ethylamino, n-propylamino, isopropylamino, n-butylamino, 2-butylamino, isobutylamino, tert-butylamino, and the like.
The term “dialkylamino” as used herein denotes in each case a group R*RoN—, wherein R* and Ro, independently of each other, are a straight-chain or branched alkyl group each usually having from 1 to 6 carbon atoms (“di-(C1-C6-alkyl)-amino”), preferably 1 to 4 carbon atoms (“di(C1-C4-alkyl)-amino”). Examples of a di-(C1-C6-alkyl)-amino group are dimethylamino, diethylamino, dipropylamino, dibutylamino, methyl-ethyl-amino, methyl-propyl-amino, methylisopropylamino, methyl-butyl-amino, methyl-isobutyl-amino, ethyl-propyl-amino, ethylisopropylamino, ethyl-butyl-amino, ethyl-isobutyl-amino, and the like.
The suffix “-carbonyl” in a group denotes in each case that the group is bound to the remainder of the molecule via a carbonyl C═O group. This is the case e.g. in alkylcarbonyl, haloalkylcarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkoxycarbonyl, haloalkoxycarbonyl.
The term “aryl” as used herein refers to a mono-, bi- or tricyclic aromatic hydrocarbon radical such as phenyl or naphthyl, in particular phenyl.
The term “het(ero)aryl” as used herein refers to a mono-, bi- or tricyclic heteroaromatic hydrocarbon radical, preferably to a monocyclic heteroaromatic radical, such as pyridyl, pyrimidyl and the like.
The term “3-, 4-, 5- or 6-membered monocyclic or 8-, 9- or 10-membered bicyclic saturated, unsaturated or aromatic heterocycle containing 1, 2, 3 or 4 heteroatoms as ring members selected from the groups consisting of N, O and S” as used herein denotes monocyclic or bicyclic radicals, the monocyclic or bicyclic radicals being saturated, unsaturated or aromatic where N can optionally be oxidized, i.e. in the form of an N-oxide, and S can also optionally be oxidized to various oxidation states, i.e. as SO or SO2. An unsaturated heterocycle contains at least one C—C and/or C—N and/or N—N double bond(s). A fully unsaturated heterocycle contains as many conjugated C—C and/or C—N and/or N—N double bonds as allowed by the size(s) of the ring(s). An aromatic monocyclic heterocycle is a fully unsaturated 5- or 6-membered monocyclic heterocycle. An aromatic bicyclic heterocycle is an 8-, 9- or 10-membered bicyclic heterocycle consisting of a 5- or 6-membered heteroaromatic ring which is fused to a phenyl ring or to another 5- or 6-membered heteroaromatic ring. The heterocycle may be attached to the remainder of the molecule via a carbon ring member or via a nitrogen ring member. As a matter of course, the heterocyclic ring contains at least one carbon ring atom. If the ring contains more than one O ring atom, these are not adjacent.
Examples of a 3-, 4-, 5- or 6-membered monocyclic saturated heterocycle include: oxirane-2-yl, aziridine-1-yl, aziridine-2-yl, oxetan-2-yl, azetidine-1-yl, azetidine-2-yl, azetidine-3-yl, thietane-1-yl, thietan-2-yl, thietane-3-yl, tetrahydrofuran-2-yl, tetrahydrofuran-3-yl, tetrahydrothien-2-yl, tetrahydrothien-3-yl, pyrrolidin-1-yl, pyrrolidin-2-yl, pyrrolidin-3-yl, pyrazolidin-1-yl, pyrazolidin-3-yl, pyrazolidin-4-yl, pyrazolidin-5-yl, imidazolidin-1-yl, imidazolidin-2-yl, imidazolidin-4-yl, oxazolidin-2-yl, oxazolidin-3-yl, oxazolidin-4-yl, oxazolidin-5-yl, isoxazolidin-2-yl, isoxazolidin-3-yl, isoxazolidin-4-yl, isoxazolidin-5-yl, thiazolidin-2-yl, thiazolidin-3-yl, thiazolidin-4-yl, thiazolidin-5-yl, isothiazolidin-2-yl, isothiazolidin-3-yl, isothiazolidin-4-yl, isothiazolidin-5-yl, 1,2,4-oxadiazolidin-3-yl, 1,2,4-oxadiazolidin-5-yl, 1,2,4-thiadiazolidin-3-yl, 1,2,4-thiadiazolidin-5-yl, 1,2,4-triazolidin-3-yl, 1,3,4-oxadiazolidin-2-yl, 1,3,4-thiadiazolidin-2-yl, 1,3,4-triazolidin-1-yl, 1,3,4-triazolidin-2-yl, 2-tetrahydropyranyl, 4-tetrahydropyranyl, 1,3-dioxan-5-yl, 1,4-dioxan-2-yl, piperidin-1-yl, piperidin-2-yl, piperidin-3-yl, piperidin-4-yl, hexahydropyridazin-3-yl, hexahydropyridazin-4-yl, hexahydropyrimidin-2-yl, hexahydropyrimidin-4-yl, hexahydropyrimidin-5-yl, piperazin-1-yl, piperazin-2-yl, 1,3,5-hexahydrotriazin-1-yl, 1,3,5-hexahydrotriazin-2-yl and 1,2,4-hexahydrotriazin-3-yl, morpholin-2-yl, morpholin-3-yl, morpholin-4-yl, thiomorpholin-2-yl, thiomorpholin-3-yl, thiomorpholin-4-yl, 1-oxothiomorpholin-2-yl, 1-oxothiomorpholin-3-yl, 1-oxothiomorpholin-4-yl, 1,1-dioxothiomorpholin-2-yl, 1,1-dioxothiomorpholin-3-yl, 1,1-dioxothiomorpholin-4-yl and the like.
Examples of a 5- or 6-membered monocyclic partially unsaturated heterocycle include: 2,3-dihydrofur-2-yl, 2,3-dihydrofur-3-yl, 2,4-dihydrofur-2-yl, 2,4-dihydrofur-3-yl, 2,3-dihydrothien-2-yl, 2,3-dihydrothien-3-yl, 2,4-dihydrothien-2-yl, 2,4-dihydrothien-3-yl, 2-pyrrolin-2-yl, 2-pyrrolin-3-yl, 3-pyrrolin-2-yl, 3-pyrrolin-3-yl, 2-isoxazolin-3-yl, 3-isoxazolin-3-yl, 4-isoxazolin-3-yl, 2-isoxazolin-4-yl, 3-isoxazolin-4-yl, 4-isoxazolin-4-yl, 2-isoxazolin-5-yl, 3-isoxazolin-5-yl, 4-isoxazolin-5-yl, 2-isothiazolin-3-yl, 3-isothiazolin-3-yl, 4-isothiazolin-3-yl, 2-isothiazolin-4-yl, 3-isothiazolin-4-yl, 4-isothiazolin-4-yl, 2-isothiazolin-5-yl, 3-isothiazolin-5-yl, 4-isothiazolin-5-yl, 2,3-dihydropyrazol-1-yl, 2,3-dihydropyrazol-2-yl, 2,3-dihydropyrazol-3-yl, 2,3-dihydropyrazol-4-yl, 2,3-dihydropyrazol-5-yl, 3,4-dihydropyrazol-1-yl, 3,4-dihydropyrazol-3-yl, 3,4-dihydropyrazol-4-yl, 3,4-dihydropyrazol-5-yl, 4,5-dihydropyrazol-1-yl, 4,5-dihydropyrazol-3-yl, 4,5-dihydropyrazol-4-yl, 4,5-dihydropyrazol-5-yl, 2,3-dihydrooxazol-2-yl, 2,3-dihydrooxazol-3-yl, 2,3-dihydrooxazol-4-yl, 2,3-dihydrooxazol-5-yl, 3,4-dihydrooxazol-2-yl, 3,4-dihydrooxazol-3-yl, 3,4-dihydrooxazol-4-yl, 3,4-dihydrooxazol-5-yl, 3,4-dihydrooxazol-2-yl, 3,4-dihydrooxazol-3-yl, 3,4-dihydrooxazol-4-yl, 2-, 3-, 4-, 5- or 6-di- or tetrahydropyridinyl, 3-di- or tetrahydropyridazinyl, 4-di- or tetrahydropyridazinyl, 2-di- or tetrahydropyrimidinyl, 4-di- or tetrahydropyrimidinyl, 5-di- or tetrahydropyrimidinyl, di- or tetrahydropyrazinyl, 1,3,5-di- or tetrahydrotriazin-2-yl and 1,2,4-di- or tetrahydrotriazin-3-yl.
A 5- or 6-membered monocyclic fully unsaturated (including aromatic) heterocyclic ring is e.g. a 5- or 6-membered monocyclic fully unsaturated (including aromatic) heterocyclic ring. Examples are: 2-furyl, 3-furyl, 2-thienyl, 3-thienyl, 1-pyrrolyl, 2-pyrrolyl, 3-pyrrolyl, 1-pyrazolyl, 3-pyrazolyl, 4-pyrazolyl, 5-pyrazolyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 2-thiazolyl, 4-thiazolyl, 5-thiazolyl, 1-imidazolyl, 2-imidazolyl, 4-imidazolyl, 1,3,4-triazol-1-yl, 1,3,4-triazol-2-yl, 2-pyridinyl, 3-pyridinyl, 4-pyridinyl, 1-oxopyridin-2-yl, 1-oxopyridin-3-yl, 1-oxopyridin-4-yl, 3-pyridazinyl, 4-pyridazinyl, 2-pyrimidinyl, 4-pyrimidinyl, 5-pyrimidinyl and 2-pyrazinyl.
Examples of a 5- or 6-membered heteroaromatic ring fused to a phenyl ring or to a 5- or 6-membered heteroaromatic radical include benzofuranyl, benzothienyl, indolyl, indazolyl, benzimidazolyl, benzoxathiazolyl, benzoxadiazolyl, benzothiadiazolyl, benzoxazinyl, chinolinyl, isochinolinyl, purinyl, 1,8-naphthyridyl, pteridyl, pyrido[3,2-d]pyrimidyl or pyridoimidazolyl and the like.
If two radicals bound on the same nitrogen atom (for example Re and Rf or R2e and R2f or Rg and Rh or R2g and R2h) together with the nitrogen atom, to which they are bound, form a 5-, 6 or 7-membered, saturated or unsaturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N, this is for example pyrrolidine-1-yl, pyrazolidin-1-yl, imidazolidin-1-yl, oxazolidin-3-yl, thiazolidin-3-yl, isoxazolidin-2-yl, isothiazolin-2-yl, [1,2,3]-triazolidin-1-yl, [1,2,3]-triazolidin-2-yl, [1,2,4]-triazolidin-1-yl, [1,2,4]-triazolidin-4-yl, [1,2,3]-oxadiazolidin-2-yl, [1,2,3]-oxadiazolidin-3-yl, [1,2,5]-oxadiazolidin-2-yl, [1,2,4]-oxadiazolidin-2-yl, [1,2,4]-oxadiazolidin-4-yl, [1,3,4]-oxadiazolidin-3-yl, [1,2,3]-thiadiazolidin-2-yl, [1,2,3]-thiadiazolidin-3-yl, [1,2,5]-thiadiazolidin-2-yl, [1,2,4]-thiadiazolidin-2-yl, [1,2,4]-thiadiazolidin-4-yl, [1,3,4]-thiadiazolidin-3-yl, piperdin-1-yl, piperazine-1-yl, morpholin-1-yl, thiomorpholin-1-yl, 1-oxothiomorpholin-1-yl, 1,1-dioxothiomorpholin-1-yl, azepan-1-yl, 1,4-diazepan-1-yl, pyrrolin-1-yl, pyrazolin-1-yl, imidazolin-1-yl, oxazolin-3-yl, isoxazolin-2-yl, thiazolin-3-yl, isothiazolin-1-yl, 1,2-dihydropyridin-1-yl, 1,2,3,4-tetrahydropyridin-1-yl, 1,2,5,6-tetrahydropyridin-1-yl, 1,2-dihydropyridazin, 1,6-dihydropyridazin, 1,2,3,4-tetrahydropyridazin-1-yl, 1,2,5,6-tetrahydropyridazin-1-yl, 1,2-dihydropyrimidin, 1,6-dihydropyrimidin, 1,2,3,4-tetrahydropyrimidin-1-yl, 1,2,5,6-tetrahydropyrimidin-1-yl, 1,2-dihydropyrazin-1-yl, 1,2,3,4-tetrahydropyrazin-1-yl, 1,2,5,6-tetrahydropyrazin-1-yl, pyrrol-1-yl, pyrazol-1-yl, imidazol-1-yl, [1,2,3]-1H-triazol-1-yl, [1,2,3]-2H-triazol-2-yl, [1,2,4]-1H-triazol-1-yl and [1,2,4]-4H-triazol-4-yl.
The remarks made below as to preferred embodiments of the variables (substituents) of the compounds of formula I are valid on their own as well as preferably in combination with each other, as well as in combination with the stereoisomers, salts, tautomers or N-oxides thereof.
The remarks made below concerning preferred embodiments of the variables further are valid on their own as well as preferably in combination with each other concerning the compounds of formulae I, where applicable, as well as concerning the uses and methods according to the invention and the composition according to the invention.
Preferred compounds according to the invention are compounds of formula I or a stereoisomer, salt or N-oxide thereof, wherein the salt is an agriculturally suitable salt. Further preferred compounds according to the invention are compounds of formula I or an N-oxide or salt thereof, especially an agriculturally suitable salt. Particularly preferred compounds according to the invention are compounds of formula I or a salt thereof, especially an agriculturally suitable salt thereof.
According to one embodiment of the invention the variable B in the compounds of formula I is N.
According to another embodiment of the invention the variable B in the compounds of formula I is CH.
According to a preferred embodiment of the invention the variable R in the compounds of formula I is selected from the group consisting of C1-C6-alkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C4-alkoxy-C1-C4-alkyl, C3-C7-cycloalkyl, C1-C6-haloalkyl, Rc—C(═O)—C1-C2-alkyl, RdO—C(═O)—C1-C2-alkyl, ReRfN—C(═O)—C1-C2-alkyl and Rk—C(═O)NH—C1-C2-alkyl; where Rc, Rd, Re, Rf, Rk, Rg and Rh are as defined above and which preferably have on their own or in particular in combination the following meanings:
According to a more preferred embodiment the variable R of the compounds of the formula I is selected from the group consisting of C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C3-C7-cycloalkyl, C1-C4-haloalkyl, Rc—C(═O)—C1-C2-alkyl, RdO—C(═O)—C1-C2-alkyl, ReRfN—C(═O)—C1-C2-alkyl and Rk—C(═O)NH—C1-C2-alkyl, where Rc, Rd, Re, Rf and Rk are as defined above and which preferably have on their own or in particular in combination the following meanings:
Rc is C1-C4-alkyl or C1-C4-haloalkyl,
Rd is C1-C4-alkyl,
Re is hydrogen or C1-C4-alkyl,
Rf is hydrogen or C1-C4-alkyl, or
Re, Rf together with the nitrogen atom, to which they are bound may form a 5-, 6 or 7-membered, saturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2, 3 or 4 methyl groups, and Rk is C1-C4-alkyl.
According to a particular preferred embodiment of the invention the variable R in the compounds of formula I is selected from C1-C4-alkyl, C3-C7-cycloalkyl, C1-C4-haloalkyl and C1-C4-alkoxy-C1-C4-alkyl, in particular from methyl, ethyl, isopropyl, tert-butyl, cyclopropyl, cyclopentyl, cyclohexyl, CF3, CHF2, CClF2, CH2CF3, CF2CF3, CH2Cl, CHCl2, ethoxyethyl, ethoxymethyl, methoxyethyl and methoxymethyl.
According to another particular preferred embodiment of the invention the variable R in the compounds of formula I is selected from C1-C4-alkyl, C3-C7-cycloalkyl, C1-C4-haloalkyl, methoxyethyl and methoxymethyl, in particular from methyl, ethyl, isopropyl, tert-butyl, cyclopropyl, cyclopentyl, cyclohexyl, CF3, CHF2, CClF2, CH2CF3, CF2CF3, CH2Cl, CHCl2, methoxyethyl and methoxymethyl.
According to another preferred embodiment of the invention the variable R in the compounds of formula I is phenyl or heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic or 8-, 9- or 10-membered bicyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2, 3 or 4 heteroatoms as ring members, which are selected from the group consisting of O, N and S, where phenyl and heterocyclyl are unsubstituted or substituted by 1, 2, 3 or 4 groups R′which are as defined above and which are independently from one another are preferably selected from the group consisting of halogen, C1-C4-alkyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-alkoxy-C1-C4-alkyl and C1-C6-haloalkyloxy, more preferably from halogen, C1-C4-alkyl, C3-C6-cycloalkyl, C1-C4-haloalkyl and C1-C4-alkoxy, in particular from halogen, methyl, ethyl, methoxy and trifluoromethyl, and specifically from Cl, F, Br, methyl, methoxy and trifluoromethyl.
According to a more preferred embodiment of the invention the variable R in the compounds of formula I is phenyl or heterocyclyl, where heterocyclyl is a partially unsaturated or aromatic 5- or 6-membered monocyclic or 9- or 10-membered bicyclic heterocycle containing 1, 2, 3 or 4 heteroatoms as ring members, which are selected from the group consisting of O, N and S, where the bicyclic heterocycle consists of a 5- or 6-membered heteroaromatic ring which is fused to a phenyl ring, and where phenyl and heterocyclyl are unsubstituted or substituted by 1, 2, 3 or 4 groups R′which independently from one another have the aforementioned preferred meanings.
According to particular preferred embodiments the variable R in the compounds of the formula I is phenyl or heterocyclyl selected from pyridin-2-yl, pyridin-3-yl, pyridin-4-yl, piperidin-2-yl, piperidin-3-yl, piperidin-4-yl, benzisoxazole-2-yl, 1,2,4-oxadiazol-3-yl, 1,2,4-triazol-3-yl, 1-ethylbenzimidazol-2-yl, 4-methylthiazol-2-yl, thiophen-2-yl, furan-2-yl, furan-3-yl, tetrahydrofuran-2-yl, tetrahydrofuran-3-yl, isoxazol-2-yl, isoxazol-3-yl, isoxazol-4-yl, isoxazol-5-yl, oxazol-2-yl, oxazol-3-yl, oxazol-4-yl, oxazol-5-yl, pyrrol-2-yl, pyrrol-3-yl, imidazol-2-yl, imidazol-4-yl, imidazol-5-yl, pyrazol-3-yl, pyrazol-4-yl, pyrazol-5-yl, isothiazol-3-yl, isothiazol-4-yl, isothiazol-5-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, 1,2,3-triazol-4-yl, 1,2,3-triazol-5-yl, 1,2,5-triazol-3-yl, 1,3,4-triazol-2-yl, 1,2,4-triazol-3-yl, 1,2,4-triazol-5-yl, 1,2,4-oxadiazol-3-yl, 1,2,4-oxadiazol-5-yl, 1,3,4-oxadiazol-2-yl, 1,2,3-oxadiazol-4-yl, 1,2,3-oxadiazol-5-yl, 1,2,5-oxadiazol-3-yl, 1,2,4-thiadiazol-3-yl, 1,2,4-thiadiazol-5-yl, 1,3,4-thiadiazol-2-yl, 1,2,3-thiadiazol-4-yl, 1,2,3-thiadiazol-5-yl, 1,2,5-thiadiazol-3-yl, 2H-1,2,3,4-tetrazol-5-yl, 1H-1,2,3,4-tetrazol-1-yl, 1,2,3,4-oxatriazol-5-yl, 1,2,3,5-oxatriazol-4-yl, 1,2,3,4-thiatriazol-5-yl, 1,2,3,5-thiatriazol-4-yl, pyrazin-2-yl, pyrazin-3-yl, pyrimidin-2-yl, pyrimidin-4-yl, pyrimidin-5-yl, pyridazin-3-yl and pyridazin-4-yl, where phenyl and heterocyclyl are unsubstituted or carry 1, 2, or 3 groups R′which independently from one another have the aforementioned preferred meanings.
According to a preferred embodiment of the invention the variable R in the compounds of formula I is Rb—S(O)n—C1-C3-alkyl, where Rb is as defined above and in particular selected from the group consisting of C1-C6-alkyl, C3-C7-cycloalkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2 or 3 heteroatoms as ring members, which are selected from the group consisting of O, N and S, where phenyl and heterocyclyl are unsubstituted or substituted by 1, 2 or 3 groups, which are identical or different and preferably selected from the group consisting of halogen, C1-C4-alkyl, C1-C2-haloalkyl and C1-C2-alkoxy.
According to a more preferred embodiment of the invention the variable R in the compounds of formula I is Rb—S(O)n—C1-C3-alkyl, where Rb is selected from the group consisting of C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C6-haloalkyl, C2-C6-haloalkenyl, C2-C6-haloalkynyl, C3-C7-cycloalkyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2 or 3 heteroatoms as ring members, which are selected from the group consisting of O, N and S.
According to an even more preferred embodiment of the invention the variable R in the compounds of formula I is Rb—S(O)n—C1-C2-alkyl, where Rb is selected from C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C7-cycloalkyl, phenyl and heterocyclyl, where heterocyclyl is a 6-membered aromatic heterocyclic radical having 1 or 2 nitrogen atoms as ring members.
According to a particularly preferred embodiment of the invention the variable R in the compounds of formula I is Rb—S(O)2—C1-C2-alkyl, where Rb is CH3, CH2H3, CH(CH3)2, CH2CH2CH3, CH2CH═CH2, CH2C≡CH or phenyl.
According to specifically preferred embodiments of the invention the variable R in the compounds of formula I is selected from the group consisting of methyl, ethyl, isopropyl, tert-butyl, cyclopropyl, cyclopentyl, cyclohexyl, CF3, CHF2, CClF2, CH2CF3, CF2CF3, CH2Cl, CHCl2, methoxyethyl, methoxymethyl, and in particular from methyl and ethyl.
According to another specifically preferred embodiment of the invention, the variable R in the compounds of formula I is selected from the group consisting of methyl, ethyl, methoxyethyl, and methoxymethyl.
Preferred compounds according to the invention are compounds of formula I, wherein R1 is selected from the group consisting of CN, halogen, nitro, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-haloalkoxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkoxy-Z1, C1-C4-alkylthio-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkylthio-Z1, C2-C6-alkenyloxy, C2-C6-alkynyloxy, C1-C6-haloalkoxy, C1-C4-haloalkoxy-C1-C4-alkoxy and R1b—S(O)k, where k and Z1 are as defined herein and where R1b is as defined above and in particular selected from the group consisting of C1-C4-alkyl and C1-C4-haloalkyl. In this context Z1 is in particular a covalent bond.
More preferably, R1 is selected from halogen, CN, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-haloalkoxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkylthio-C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C3-C4-alkenyloxy, C3-C4-alkynyloxy, C1-C4-alkoxy-C1-C4-alkoxy, C1-C4-haloalkoxy-C1-C4-alkoxy, C1-C4-alkyl-S(O)k and C1-C4-haloalkyl-S(O)k, where k is 0 or 2.
In particular, R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, C1-C4-haloalkylthio and C1-C4-alkylsulfonyl, specifically R1 is F, Cl, Br, I, nitro, CH3, CF3, OCH3, OCF3, SCH3, SCF3, SO2CH3 or CH2OCH2CH2OCH3, and more specifically R1 is F, C1, Br, I, nitro, CH3, CF3, OCH3, SCH3 or SO2CH3.
According to preferred embodiment of the invention the variable R2 in the compounds of formula I is selected from the group consisting of C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C3-alkoxy-C1-C3-alkoxy and C1-C4-alkyl-S(O)k, where k is 0, 1 or 2.
According to a even more preferred embodiment of the invention the variable R2 in the compounds of formula I is selected from the group consisting of CH3S, CH3CH2S, CH3CH2CH2S, CH3SO, CH3CH2SO, CH3CH2CH2SO, CH3SO2, CH3CH2SO2, CH3CH2CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O, CF3CH2CH2O and CH3OCH2CH2O.
According to an even more preferred embodiment of the invention the variable R2 in the compounds of formula I is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O, CF3CH2CH2O and CH3OCH2CH2O.
Preferred compounds according to the invention are compounds of formula I, wherein R3 is selected from the group consisting of hydrogen, cyano, halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C2-C4-alkenyl, C2-C4-alkynyl, C2-C4-alkenyloxy, C2-C4-alkynyloxy or R2b—S(O)k, where the variables k and R2b have one of the herein defined meanings.
More preferably, R3 is selected from the group consisting of hydrogen, halogen, CN, NO2, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, C1-C4-haloalkylthio, C1-C4-alkyl-S(O)2 and C1-C4-haloalkyl-S(O)2.
In particular, R3 is selected from the group consisting of hydrogen, halogen, CN, NO2, C1-C2-alkyl, C1-C2-haloalkyl, C1-C2-alkoxy, C1-C2-haloalkoxy, C1-C2-alkylthio, C1-C2-haloalkylthio, C1-C2-alkyl-S(O)2 and C1-C2-haloalkyl-S(O)2, specifically from H, Cl, F, CN, NO2, CH3, CF3, CHF2, OCH3, OCF3, OCHF2, SCH3, SCF3, SCHF2, S(O)2CH3 and S(O)2CH2CH3, and more specifically from H, Cl, F, CN, CF3, SCH3 and S(O)2CH3.
Preferred compounds according to the invention are compounds of formula I, wherein R4 is selected from the group consisting of hydrogen, cyano, halogen, nitro, C1-C2-alkyl and C1-C2-haloalkyl, in particular from the group consisting of hydrogen, CHF2, CF3, CN, NO2, CH3 and halogen, and specifically from hydrogen, CHF2, CF3, CN, NO2, CH3, Cl, Br and F.
In the context of the present invention, compounds wherein R4 is selected from the group consisting of H, Cl and F are highly preferred.
Preferred compounds according to the invention are compounds of formula I, wherein R5 is selected from the group consisting of hydrogen, halogen, C1-C2-alkyl and C1-C2-haloalkyl, and in particular from the group consisting of hydrogen, CHF2, CF3 and halogen. According to a particular embodiment, R5 is not hydrogen.
In the context of the present invention, compounds wherein R5 is selected from the group consisting of H, Cl and F are highly preferred. According to another particular embodiment, R5 is selected from the group consisting of Cl and F.
According to a further particular embodiment of the invention either R4 is hydrogen and R5 is chlorine or fluorine, or R5 is hydrogen and R4 is chlorine or fluorine.
In this context, the variables R′, R11, R21, Z, Z1, Z2, Z2a, Rb, R1b, R2b, Rc, R2c, Rd, R2d, Re, R2e, Rf, R2f, Rg, R2g, Rh, R2h, Rk, n and k, independently of each other, preferably have one of the following meanings:
R′, R11, R21 independently of each other are selected from halogen, C1-C4-alkyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkoxy and C1-C6-haloalkyloxy, more preferably from halogen, C1-C4-alkyl, C3-C6-cycloalkyl, C1-C4-haloalkyl and C1-C4-alkoxy.
More preferably R′, R11, R21 independently of each other are selected from the group consisting of halogen, C1-C4-alkyl, C3-C6-cycloalkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkyl and C1-C4-alkoxy-C1-C4-alkoxy; in particular selected from halogen, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkyl, C1-C4-alkoxy-C1-C4-alkyl and C1-C4-alkoxy-C1-C4-alkoxy; and specifically from Cl, F, Br, methyl, ethyl, methoxy and trifluoromethyl.
Z, Z1, Z2 independently of each other are selected from a covalent bond, methanediyl and ethanediyl, and in particular are a covalent bond.
Z2a is selected from a covalent bond, C1-C2-alkanediyl, O—C1-C2-alkanediyl, C1-C2-alkanediyl-O and C1-C2-alkanediyl-O—C1-C2-alkanediyl; more preferably from a covalent bond, methanediyl, ethanediyl, O-methanediyl, O-ethanediyl, methanediyl-O, and ethanediyl-O; and in particular from a covalent bond, methanediyl and ethanediyl.
Rb, R1b, R2b independently of each other are selected from C1-C6-alkyl, C3-C7-cycloalkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2 or 3 heteroatoms as ring members, which are selected from the group consisting of O, N and S, where phenyl and heterocyclyl are unsubstituted or substituted by 1, 2 or 3 groups, which are identical or different and selected from the group consisting of halogen, C1-C4-alkyl, C1-C2-haloalkyl and C1-C2-alkoxy.
More preferably Rb, R1b, R2b independently of each other are selected from the group consisting of C1-C4-alkyl, C2-C4-alkenyl, C2-C4-alkynyl, C1-C4-haloalkyl, C2-C4-haloalkenyl, C2-C4-haloalkynyl, C3-C6-cycloalkyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2 or 3 heteroatoms as ring members, which are selected from the group consisting of O, N and S.
In particular, Rb, R1b, R2b independently of each other are selected from C1-C4-alkyl, C1-C4-haloalkyl, C2-C4-alkenyl, C2-C4-haloalkenyl, C2-C4-alkynyl, C3-C6-cycloalkyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered aromatic heterocyclic radical having 1 or 2 nitrogen atoms as ring members.
Rc, R2c, Rk independently of each other are selected from hydrogen, C1-C6-alkyl, C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C4-alkoxy-C1-C4-alkyl, phenyl, benzyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2 or 3 heteroatoms as ring members, which are selected from the group consisting of O, N and S, where phenyl, benzyl and heterocyclyl are unsubstituted or substituted by 1, 2 or 3 groups, which are identical or different and selected from the group consisting of halogen, C1-C4-alkyl, C1-C4-haloalkyl and C1-C4-alkoxy.
More preferably Rc, R2c, Rk independently of each other are selected from hydrogen, C1-C4-alkyl, C1-C4-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered monocyclic saturated, partially unsaturated or aromatic heterocycle, which contains 1, 2 or 3 heteroatoms as ring members, which are selected from the group consisting of O, N and S.
In particular, Rc, R2c, Rk independently of each other are selected from hydrogen, C1-C4-alkyl, C1-C4-haloalkyl, C2-C4-alkenyl, C2-C4-haloalkenyl, C3-C6-cycloalkyl, phenyl and heterocyclyl, where heterocyclyl is a 5- or 6-membered aromatic heterocyclic radical having 1 or 2 nitrogen atoms as ring members.
Rd, R2d independently of each other are selected from C1-C6-alkyl, C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C4-alkoxy-C1-C4-alkyl, phenyl and benzyl.
More preferably Rd, R2d independently of each other are selected from C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C1-C4-alkoxy-C1-C4-alkyl and C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, and in particular selected from C1-C4-alkyl, C1-C4-haloalkyl, C2-C4-alkenyl, C2-C4-haloalkenyl, C2-C4-alkynyl and C3-C6-cycloalkyl.
Re, Rf, R2e, R2f independently of each other are selected from the group consisting of hydrogen, C1-C6-alkyl, C3-C7-cycloalkyl, which is unsubstituted or partially or completely halogenated, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C4-alkoxy-C1-C4-alkyl, phenyl and benzyl, where phenyl and benzyl are unsubstituted or substituted by 1, 2 or 3 groups, which are identical or different and selected from the group consisting of halogen, C1-C4-alkyl, C1-C4-haloalkyl and C1-C4-alkoxy, or Re and Rf or R2e and R2f together with the nitrogen atom, to which they are bound may form a 5-, 6 or 7-membered, saturated or unsaturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2, 3 or 4 groups, which are identical or different and selected from the group consisting of halogen, C1-C4-alkyl, C1-C4-haloalkyl and C1-C4-alkoxy.
More preferably Re, Rf, R2e, R2f independently of each other are selected from hydrogen, C1-C6-alkyl, C1-C6-haloalkyl and benzyl, or Re and Rf or R2e and R2f together with the nitrogen atom, to which they are bound may form a 5- or 6-membered, saturated or unsaturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2 or 3 groups, which are identical or different and selected from the group consisting of halogen, C1-C4-alkyl and C1-C4-haloalkyl.
In particular, Re, Rf, R2e, R2f independently of each other are selected from hydrogen and C1-C4-alkyl, or Re and Rf or R2e and R2f together with the nitrogen atom, to which they are bound may form a 5- or 6-membered, saturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2 or 3 methyl groups.
Rg, R2g independently of each other are selected from hydrogen, C1-C6-alkyl, C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C4-alkoxy-C1-C4-alkyl, phenyl and benzyl.
More preferably Rg, R2g independently of each other are selected from hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, benzyl, C1-C4-alkoxy-C1-C4-alkyl and C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, and in particular selected from hydrogen, C1-C4-alkyl, C1-C4-haloalkyl, C2-C4-alkenyl, C2-C4-haloalkenyl, benzyl and C3-C6-cycloalkyl.
Rh, R2h independently of each other are selected from hydrogen, C1-C6-alkyl, C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C4-alkoxy-C1-C4-alkyl, phenyl, benzyl and a radical C(═O)—Rk, where Rk is H, C1-C4-alkyl, C1-C4-haloalkyl or phenyl.
More preferably Rh, R2h independently of each other are selected from hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, benzyl, C1-C4-alkoxy-C1-C4-alkyl and C3-C7-cycloalkyl, which is unsubstituted or partly or completely halogenated, and in particular selected from hydrogen, C1-C4-alkyl, C1-C4-haloalkyl, C2-C4-alkenyl, C2-C4-haloalkenyl, benzyl and C3-C6-cycloalkyl; or
Rg and Rh or R2g and R2h together with the nitrogen atom, to which they are bound may form a 5-, 6 or 7-membered, saturated or unsaturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2, 3 or 4 groups, which are identical or different and selected from the group consisting of ═O, halogen, C1-C4-alkyl and C1-C4-haloalkyl and C1-C4-alkoxy;
more preferably Rg and Rh or R2g and R2h together with the nitrogen atom, to which they are bound may form a 5- or 6-membered, saturated or unsaturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2 or 3 groups, which are identical or different and selected from the group consisting of halogen, C1-C4-alkyl and C1-C4-haloalkyl;
and in particular, Rg and Rh or R2g and R2h together with the nitrogen atom, to which they are bound may form a 5- or 6-membered, saturated N-bound heterocyclic radical, which may carry as a ring member a further heteroatom selected from O, S and N and which is unsubstituted or may carry 1, 2 or 3 methyl groups.
n and k independently of each other are 0 or 2, and in particular 2.
Particularly preferred are compounds of formula I, wherein the variables R1 and R3 have the following meanings:
R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, C1-C4-haloalkylthio and C1-C4-alkylsulfonyl, in particular from F, C1, Br, nitro, CH3, CF3, OCH3, SCH3, OCF3, SCF3, SO2CH3, CH2OCH3 and CH2OCH2CH2OCH3; and
R3 is selected from the group consisting of hydrogen, halogen, CN, NO2, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-haloalkylthio and C1-C4-alkylsulfonyl, in particular from H, Cl, F, CN, NO2, CH3, CF3, CHF2, OCH3, OCF3, OCHF2, SCH3, SCF3, SCHF2, S(O)2CH3 and S(O)2CH2CH3.
Also particularly preferred are compounds of formula I, wherein the variables R1 and R3 have the following meanings:
R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, C1-C4-haloalkylthio and C1-C4-alkylsulfonyl, in particular from F, C1, Br, nitro, CH3, CF3, OCH3, SCH3, OCF3, SCF3, SO2CH3, CH2OCH3 and CH2OCH2CH2OCH3; and
R3 is selected from the group consisting of hydrogen, halogen, CN, NO2, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-haloalkylthio, C1-C4-haloalkylthio and C1-C4-alkylsulfonyl, in particular from H, Cl, F, CN, NO2, CH3, CF3, CHF2, OCH3, OCF3, OCHF2, SCH3, SCF3, SCHF2, S(O)2CH3 and S(O)2CH2CH3, most particular from H, Cl, F, CN, CF3, SCH3, and S(O)2CH3.
Especially preferred are compounds of formula I, wherein B is N and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of C1-C6-alkyl and C1-C4-alkoxy-C1-C4-alkyl, in particular from methyl, ethyl, methoxyethyl, and methoxymethyl;
R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-alkylthio, and C1-C4-alkylsulfonyl, specifically R1 is F, C1, Br, I, nitro, CH3, CF3, OCH3, SCH3 or SO2CH3.
R2 is selected from the group consisting of C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C3-alkoxy-C1-C3-alkoxy and C1-C4-alkyl-S(O)k, where k is 0, 1 or 2. In particular, R2 is selected from CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O, CF3CH2CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, halogen, CN, C1-C2-haloalkyl, C1-C2-alkylthio, and C1-C2-alkyl-S(O)2, in particular from H, Cl, F, CN, CF3, SCH3 and S(O)2CH3;
R4 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, Cl and F; and
R5 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, Cl and F; provided that at least one of the radicals R4 and R5 is different from hydrogen. In a particular preferred embodiment, R5 is Cl or F.
Especially preferred are compounds of formula I, wherein B is N and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from C1-C4-alkyl, in particular from CH3, CH2CH3, CH(CH3)2 and C(CH3)3;
R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl and C1-C4-alkyl-S(O)2, in particular from Cl, Br, F, nitro, CH3, CH2CH3, CH(CH3)2, CF3, CHF2, S(O)2CH3 and S(O)2CH2CH3;
R2 is selected from the group consisting of C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C3-alkoxy-C1-C3-alkoxy and C1-C4-alkyl-S(O)k, where k is 0, 1 or 2. In particular, R2 is selected from CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, halogen, CN, C1-C4-haloalkyl and C1-C4-alkyl-S(O)2, in particular from H, Cl, F, CN, CF3, CHF2, S(O)2CH3 and S(O)2CH2CH3;
R4 is selected from the group consisting of hydrogen, CN, CHF2, CF3, CH3, NO2 and halogen, in particular from hydrogen, CHF2, CF3, CH3, Cl and F; and
R5 is selected from the group consisting of hydrogen, halogen, CHF2 and CF3, in particular from hydrogen, Cl, F, CHF2 and CF3, provided that at least one of the radicals R4 and R5 is different from hydrogen.
Especially preferred are compounds of formula I, wherein B is N and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of methyl, ethyl, methoxyethyl, and methoxymethyl;
R1 is selected from the group consisting of F, C1, Br, I, nitro, CH3, CF3, OCH3, SCH3 or SO2CH3.
R2 is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O, CF3CH2CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of H, Cl, F, CN, CF3, SCH3 and S(O)2CH3;
R4 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, Cl and F; and
R5 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, Cl and F; provided that at least one of the radicals R4 and R5 is different from hydrogen. In a particular preferred embodiment, R5 is Cl or F.
Specifically preferred are compounds of formula I, wherein B is N and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of methyl and ethyl;
R1 is selected from the group consisting of chlorine, nitro, methyl, trifluoromethyl and methylsulfonyl;
R2 is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, fluorine, chlorine, trifluoromethyl, CN and methylsulfonyl;
and either R4 is hydrogen and R5 is chlorine or fluorine, or R5 is hydrogen and R4 is chlorine or fluorine.
Also specifically preferred are compounds of formula I, wherein B is N and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of methoxyethyl and methoxymethyl;
R1 is selected from the group consisting of chlorine, nitro, methyl, trifluoromethyl and methylsulfonyl;
R2 is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, fluorine, chlorine, trifluoromethyl, CN and methylsulfonyl;
and either R4 is hydrogen and R5 is chlorine or fluorine, or R5 is hydrogen and R4 is chlorine or fluorine.
Especially preferred are compounds of formula I, wherein B is CH and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of C1-C6-alkyl and C1-C4-alkoxy-C1-C4-alkyl, in particular from methyl, ethyl, methoxyethyl, and methoxymethyl;
R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-alkylthio, and C1-C4-alkylsulfonyl, specifically R1 is F, C1, Br, I, nitro, CH3, CF3, OCH3, SCH3 or SO2OCH3.
R2 is selected from the group consisting of C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C3-alkoxy-C1-C3-alkoxy and C1-C4-alkyl-S(O)k, where k is 0, 1 or 2. In particular, R2 is selected from CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O, CF3CH2CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, halogen, CN, C1-C2-haloalkyl, C1-C2-alkylthio, and C1-C2-alkyl-S(O)2, in particular from H, C1, F, CN, CF3, SCH3 and S(O)2CH3;
R4 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, C1 and F; and
R5 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, C1 and F; provided that at least one of the radicals R4 and R5 is different from hydrogen. In a particular preferred embodiment, R5 is C1 or F.
Especially preferred are compounds of formula I, wherein B is CH and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from C1-C4-alkyl, in particular from CH3, CH2CH3, CH(CH3)2 and C(CH3)3;
R1 is selected from the group consisting of halogen, nitro, C1-C4-alkyl, C1-C4-haloalkyl and C1-C4-alkyl-S(O)2, in particular from Cl, Br, F, nitro, CH3, CH2CH3, CH(CH3)2, CF3, CHF2, S(O)2CH3 and S(O)2CH2CH3;
R2 is selected from the group consisting of C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C3-alkoxy-C1-C3-alkoxy and C1-C4-alkyl-S(O)k, where k is 0, 1 or 2. In particular, R2 is selected from CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, halogen, CN, C1-C4-haloalkyl and C1-C4-alkyl-S(O)2, in particular from Cl, F, CN, CF3, CHF2, S(O)2CH3 and S(O)2CH2CH3;
R4 is selected from the group consisting of hydrogen, CN, CHF2, CF3, CH3, NO2 and halogen, in particular from hydrogen, CHF2, CF3, CH3, C1 and F; and
R5 is selected from the group consisting of hydrogen, halogen, CHF2 and CF3, in particular from hydrogen, Cl, F, CHF2 and CF3, provided that at least one of the radicals R4 and R5 is different from hydrogen.
Especially preferred are compounds of formula I, wherein B is CH and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of methyl, ethyl, methoxyethyl, and methoxymethyl;
R1 is selected from the group consisting of F, C1, Br, I, nitro, CH3, CF3, OCH3, SCH3 or SO2CH3.
R2 is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O, CF3CH2CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of H, C1, F, CN, CF3, SCH3 and S(O)2CH3;
R4 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, C1 and F; and
R5 is selected from the group consisting of hydrogen and halogen, in particular from hydrogen, C1 and F; provided that at least one of the radicals R4 and R5 is different from hydrogen. In a particular preferred embodiment, R5 is C1 or F.
Specifically preferred are compounds of formula I, wherein B is CH and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of methyl and ethyl;
R1 is selected from the group consisting of chlorine, nitro, methyl, trifluoromethyl and methylsulfonyl;
R2 is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, fluorine, chlorine, trifluoromethyl, CN and methylsulfonyl;
and either R4 is hydrogen and R5 is chlorine or fluorine, or R5 is hydrogen and R4 is chlorine or fluorine.
Also specifically preferred are compounds of formula I, wherein B is CH and the variables R, R1, R2, R3, R4 and R5 have the following meanings:
R is selected from the group consisting of methoxyethyl and methoxymethyl;
R1 is selected from the group consisting of chlorine, nitro, methyl, trifluoromethyl and methylsulfonyl;
R2 is selected from the group consisting of CH3S, CH3CH2S, CH3SO, CH3CH2SO, CH3SO2, CH3CH2SO2, CH3O, CH3CH2O, CHF2O, CF3CH2O and CH3OCH2CH2O;
R3 is selected from the group consisting of hydrogen, fluorine, chlorine, trifluoromethyl, CN and methylsulfonyl;
and either R4 is hydrogen and R5 is chlorine or fluorine, or R5 is hydrogen and R4 is chlorine or fluorine.
Preferred compounds of formula I according to the present invention are compounds of formula I as described herein,
Examples of preferred compounds are the individual compounds compiled in Tables 1 to 8 below. Moreover, the meanings mentioned below for the individual variables in the Tables are per se, independently of the combination in which they are mentioned, a particularly preferred embodiment of the substituents in question.
Table 1 Compounds of formula I (I.A-2-I.A-2504) in which B is CH and R is methyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 2 Compounds of formula I (II.A-2-II.A-2504) in which B is CH and R is ethyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 3 Compounds of formula I (III.A-2-III.A-2504) in which B is CH and R is methoxymethyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 4 Compounds of formula I (IV.A-2-IV.A-2504) in which B is CH and R is methoxyethyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 5 Compounds of formula I (V.A-2-V.A-2504) in which B is N and R is methyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 6 Compounds of formula I (VI.A-2-VI.A-2504) in which B is N and R is ethyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 7 Compounds of formula I (VII.A-2-VII.A-2504) in which B is N and R is methoxymethyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
Table 8 Compounds of formula I (VIII.A-2-VIII.A-2504) in which B is N and R is methoxyethyl and the combination of R1, R2, R3, R4 and R5 for a compound corresponds in each case to one row of Table A;
The compounds of formula I can be prepared by standard methods of organic chemistry, e.g. by the methods described hereinafter in schemes 1 to 8. The substituents, variables and indices in schemes 1 to 8 are as defined above for formula I, if not otherwise specified.
The compounds of formula I can be prepared analogous to Scheme 1 below.
5-Amino-1-R-1,2,4-triazole or 5-amino-1-R-tetrazole compounds of formula III can be reacted with benzoyl derivatives of formula II to afford compounds of formula I. X is a leaving group, such as halogen, in particular Cl, an anhydride residue or an active ester residue. Especially in case of X being halogen the reaction is suitably carried out in the presence of a base. Suitable bases are for example carbonates, such as lithium, sodium or potassium carbonates, amines, such as trimethylamine or triethylamine, and basic N-heterocycles, such as pyridine, 2,6-dimethylpyridine or 2,4,6-trimethylpyridine. Suitable solvents are in particular aprotic solvents such as pentane, hexane, heptane, octane, cyclohexane, dichloromethane, chloroform, 1,2-dichlorethane, benzene, chlorobenzene, toluene, the xylenes, dichlorobenzene, trimethylbenzene, pyridine, 2,6-dimethylpyridine, 2,4,6-trimethylpyridine, acetonitrile, diethyl ether, tetrahydrofuran, 2-methyl tetrahydrofuran, methyl tert-butylether, 1,4-dioxane, N,N-dimethyl formamide, N-methyl pyrrolidinone or mixtures thereof. The starting materials are generally reacted with one another in equimolar or nearly equimolar amounts at a reaction temperature usually in the range of −20° C. to 100° C. and preferably in the range of −5° C. to 50° C.
Alternatively, compounds of formula I can also be prepared as shown in Scheme 2. Reaction of 5-amino-1-R-1,2,4-triazole or 5-amino-1-R-tetrazole of formula III with a benzoic acid derivative of formula IV yields compound I. The reaction is preferably carried out in the presence of a suitable activating agent, which converts the acid group of compound IV into an activated ester or amide. For this purpose activating agents known in the art, such as 1,1′, carbonyldiimidazole (CDI), dicyclohexyl carbodiimide (DCC), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) or 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphorinane-2,4,6-trioxide (T3P) can be employed. The activated ester or amide can be formed, depending in particular on the specific activating agent used, either in situ by contacting compound IV with the activating agent in the presence of compound III, or in a separate step prior to the reaction with compound III. It may be advantageous, especially in cases where DCC or EDC are used as activating agent, to include further additives in the activating reaction, such as hydroxybenzotriazole (HOBt), nitrophenol, pentafluorophenol, 2,4,5-trichlorophenol or N-hydroxysuccinimide. It may further be advantageous to prepare the activated ester or amide in the presence of a base, for example a tertiary amine. The activated ester or amide is either in situ or subsequently reacted with the amine of formula III to afford the amide of formula I. The reaction normally takes place in anhydrous inert solvents, such as chlorinated hydrocarbons, e.g. dichloromethane or dichloroethane, ethers, e.g. tetrahydrofuran or 1,4-dioxane or carboxamides, e.g. N,N-dimethylformamide, N,N-dimethylacetamide or N-methylpyrrolidone. The reaction is ordinarily carried out at temperatures in the range from −20° C. to +25° C.
The compounds of formula II and their respective benzoic acid precursors of formula IV can be purchased or can be prepared by processes known in the art or disclosed in the literature, e.g. in WO 9746530, WO 9831676, WO 9831681, WO 2002/018352, WO 2000/003988, US 2007/0191335, U.S. Pat. No. 6,277,847.
Furthermore, compounds of formula I, can be obtained by treating N-(1H-1,2,4-triazol-5-yl)benzamides or N-(1H-tetrazol-5-yl)benzamides of formula V with, for example, alkylating agents such as alkyl halides according to Scheme 3.
The 5-amino-1-R-tetrazoles of formula Ill, where R is for example alkyl, are either commercially available or are obtainable according to methods known from the literature. For example, 5-amino-1-R-tetrazole can be prepared from 5-aminotetrazole according to the method described in the Journal of the American Chemical Society, 1954, 76, 923-924 (Scheme 4).
Alternatively, 5-amino-1-R-tetrazole compounds of formula III can be prepared according to the method described in the Journal of the American Chemical Society, 1954, 76, 88-89 (Scheme 5).
As shown in Scheme 6, 5-amino-1-R-triazoles of formula Ill, where R is for example alkyl, are either commercially available or are obtainable according to methods described in the literature. For example, 5-amino-1-R-triazole can be prepared from 5-aminotriazole according to the method described in Zeitschrift für Chemie, 1990, 30, 12, 436-437.
5-Amino-1-R-triazole compounds of formula Ill, can also be prepared analogous to the synthesis described in Chemische Berichte, 1964, 97, 2, 396-404, as shown in Scheme 7.
Alternatively, 5-amino-1-R-triazoles of formula Ill, can be prepared according to the synthesis described in Angewandte Chemie, 1963, 75, 918 (Scheme 8).
As a rule, the compounds of formula I including their stereoisomers, salts, tautomers and N-oxides, and their precursors in the synthesis process, can be prepared by the methods described above. If individual compounds can not be prepared via the above-described routes, they can be prepared by derivatization of other compounds of formula I or the respective precursor or by customary modifications of the synthesis routes described. For example, in individual cases, certain compounds of formula I can advantageously be prepared from other compounds of formula I by derivatization, e.g. by ester hydrolysis, amidation, esterification, ether cleavage, olefination, reduction, oxidation and the like, or by customary modifications of the synthesis routes described.
The reaction mixtures are worked up in the customary manner, for example by mixing with water, separating the phases, and, if appropriate, purifying the crude products by chromatography, for example on alumina or on silica gel. Some of the intermediates and end products may be obtained in the form of colorless or pale brown viscous oils which are freed or purified from volatile components under reduced pressure and at moderately elevated temperature. If the intermediates and end products are obtained as solids, they may be purified by recrystallization or trituration.
The compounds of formula I and their agriculturally suitable salts are useful as herbicides. They are useful as such or as an appropriately formulated composition. The herbicidal compositions comprising the compound I, in particular the preferred aspects thereof, control vegetation on non-crop areas very efficiently, especially at high rates of application. They act against broad-leaved weeds and weed grasses in crops such as wheat, rice, corn, soybeans and cotton without causing any significant damage to the crop plants. This effect is mainly observed at low rates of application.
Depending on the application method in question, the compounds of formula I, in particular the preferred aspects thereof, or compositions comprising them can additionally be employed in a further number of crop plants for eliminating unwanted plants. Examples of suitable crops are the following:
Allium cepa, Ananas comosus, Arachis hypogaea, Asparagus officinalis, Avena sativa, Beta vulgaris spec. altissima, Beta vulgaris spec. rapa, Brassica napus var. napus, Brassica napus var. napobrassica, Brassica rapa var. silvestris, Brassica oleracea, Brassica nigra, Camellia sinensis, Carthamus tinctorius, Carya illinoinensis, Citrus limon, Citrus sinensis, Coffea arabica (Coffea canephora, Coffea liberica), Cucumis sativus, Cynodon dactylon, Daucus carota, Elaeis guineensis, Fragaria vesca, Glycine max, Gossypium hirsutum, (Gossypium arboreum, Gossypium herbaceum, Gossypium vitifolium), Helianthus annuus, Hevea brasiliensis, Hordeum vulgare, Humulus lupulus, Ipomoea batatas, Juglans regia, Lens culinaris, Linum usitatissimum, Lycopersicon lycopersicum, Malus spec., Manihot esculenta, Medicago sativa, Musa spec., Nicotiana tabacum (N. rustica), Olea europaea, Oryza sativa, Phaseolus lunatus, Phaseolus vulgaris, Picea abies, Pinus spec., Pistacia vera, Pisum sativum, Prunus avium, Prunus persica, Pyrus communis, Prunus armeniaca, Prunus cerasus, Prunus dulcis and Prunus domestica, Ribes sylvestre, Ricinus communis, Saccharum officinarum, Secale cereale, Sinapis alba, Solanum tuberosum, Sorghum bicolor (s. vulgare), Theobroma cacao, Trifolium pratense, Triticum aestivum, Triticale, Triticum durum, Vicia faba, Vitis vinifera, Zea mays.
The term “crop plants” also includes plants which have been modified by breeding, mutagenesis or genetic engineering. Genetically modified plants are plants whose genetic material has been modified in a manner which does not occur under natural conditions by crossing, mutations or natural recombination (i.e. reassembly of the genetic information). Here, in general, one or more genes are integrated into the genetic material of the plant to improve the properties of the plant.
Accordingly, the term “crop plants” also includes plants which, by breeding and genetic engineering, have acquired tolerance to certain classes of herbicides, such as hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors, acetolactate synthase (ALS) inhibitors, such as, for example, sulfonylureas (EP-A-0257993, U.S. Pat. No. 5,013,659) or imidazolinones (see, for example, U.S. Pat. No. 6,222,100, WO 01/82685, WO 00/26390, WO 97/41218, WO 98/02526, WO 98/02527, WO 04/106529, WO 05/20673, WO 03/14357, WO 03/13225, WO 03/14356, WO 04/16073), enolpyruvylshikimate 3-phosphate synthase (EPSPS) inhibitors, such as, for example, glyphosate (see, for example, WO 92/00377), glutamine synthetase (GS) inhibitors, such as, for example, glufosinate (see, for example, EP-A-0242236, EP-A-242246), or oxynil herbicides (see, for example, U.S. Pat. No. 5,559,024).
Numerous crop plants, for example Clearfield® oilseed rape, tolerant to imidazolinones, for example imazamox, have been generated with the aid of classic breeding methods (mutagenesis). Crop plants such as soybeans, cotton, corn, beet and oilseed rape, resistant to glyphosate or glufosinate, which are available under the tradenames RoundupReady® (glyphosate) and Liberty Link® (glufosinate) have been generated with the aid of genetic engineering methods.
Accordingly, the term “crop plants” also includes plants which, with the aid of genetic engineering, produce one or more toxins, for example those of the bacterial strain Bacillus ssp. Toxins which are produced by such genetically modified plants include, for example, insecticidal proteins of Bacillus spp., in particular B. thuringiensis, such as the endotoxins Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab, Cry3A, Cry3Bb1, Cry9c, Cry34Ab1 or Cry35Ab1; or vegetative insecticidal proteins (VIPs), for example VIP1, VIP2, VIP3, or VIP3A; insecticidal proteins of nematode-colonizing bacteria, for example Photorhabdus spp. or Xenorhabdus spp.; toxins of animal organisms, for example wasp, spider or scorpion toxins; fungal toxins, for example from Streptomycetes; plant lectins, for example from peas or barley; agglutinins; proteinase inhibitors, for example trypsin inhibitors, serine protease inhibitors, patatin, cystatin or papain inhibitors, ribosome-inactivating proteins (RIPs), for example ricin, corn-RIP, abrin, luffin, saporin or bryodin; steroid-metabolizing enzymes, for example 3-hydroxysteroid oxidase, ecdysteroid-IDP glycosyl transferase, cholesterol oxidase, ecdysone inhibitors, or HMG-CoA reductase; ion channel blockers, for example inhibitors of sodium channels or calcium channels; juvenile hormone esterase; receptors of the diuretic hormone (helicokinin receptors); stilbene synthase, bibenzyl synthase, chitinases and glucanases. In the plants, these toxins may also be produced as pretoxins, hybrid proteins or truncated or otherwise modified proteins. Hybrid proteins are characterized by a novel combination of different protein domains (see, for example, WO 2002/015701). Further examples of such toxins or genetically modified plants which produce these toxins are disclosed in EP-A 374 753, WO 93/007278, WO 95/34656, EP-A 427 529, EPA 451 878, WO 03/018810 and WO 03/052073. The methods for producing these genetically modified plants are known to the person skilled in the art and disclosed, for example, in the publications mentioned above. Numerous of the toxins mentioned above bestow, upon the plants by which they are produced, tolerance to pests from all taxonomic classes of arthropods, in particular to beetles (Coeleropta), dipterans (Diptera) and butterflies (Lepidoptera) and to nematodes (Nematoda).
Genetically modified plants which produce one or more genes coding for insecticidal toxins are described, for example, in the publications mentioned above, and some of them are commercially available, such as, for example, YieldGard® (corn varieties producing the toxin Cry1Ab), YieldGard® Plus (corn varieties which produce the toxins Cry1Ab and Cry3Bb1), Starlink® (corn varieties which produce the toxin Cry9c), Herculex® RW (corn varieties which produce the toxins Cry34Ab1, Cry35Ab1 and the enzyme phosphinothricin-N-acetyltransferase [PAT]); NuCOTN® 33B (cotton varieties which produce the toxin Cry1Ac), Bollgard® I (cotton varieties which produce the toxin Cry1Ac), Bollgard® II (cotton varieties which produce the toxins Cry1Ac and Cry2Ab2); VIPCOT® (cotton varieties which produce a VIP toxin); NewLeaf® (potato varieties which produce the toxin Cry3A); Bt-Xtra®, NatureGard®, KnockOut®, BiteGard®, Protecta®, Btl 1 (for example Agrisure® CB) and Bt176 from Syngenta Seeds SAS, France (corn varieties which produce the toxin Cry1Ab and the PAT enzyme), MIR604 from Syngenta Seeds SAS, France (corn varieties which produce a modified version of the toxin Cry3A, see WO 03/018810), MON 863 from Monsanto Europe S.A., Belgium (corn varieties which produce the toxin Cry3Bb1), IPC 531 from Monsanto Europe S.A., Belgium (cotton varieties which produce a modified version of the toxin Cry1Ac) and 1507 from Pioneer Overseas Corporation, Belgium (corn varieties which produce the toxin Cry1F and the PAT enzyme).
Accordingly, the term “crop plants” also includes plants which, with the aid of genetic engineering, produce one or more proteins which are more robust or have increased resistance to bacterial, viral or fungal pathogens, such as, for example, pathogenesis-related proteins (PR proteins, see EP-A 0 392 225), resistance proteins (for example potato varieties producing two resistance genes against Phytophthora infestans from the wild Mexican potato Solanum bulbocastanum) or T4 lysozyme (for example potato cultivars which, by producing this protein, are resistant to bacteria such as Erwinia amylvora).
Accordingly, the term “crop plants” also includes plants whose productivity has been improved with the aid of genetic engineering methods, for example by enhancing the potential yield (for example biomass, grain yield, starch, oil or protein content), tolerance to drought, salt or other limiting environmental factors or resistance to pests and fungal, bacterial and viral pathogens.
The term “crop plants” also includes plants whose ingredients have been modified with the aid of genetic engineering methods in particular for improving human or animal diet, for example by oil plants producing health-promoting long-chain omega 3 fatty acids or monounsaturated omega 9 fatty acids (for example Nexera® oilseed rape).
The term “crop plants” also includes plants which have been modified with the aid of genetic engineering methods for improving the production of raw materials, for example by increasing the amylopectin content of potatoes (Amflora® potato).
Furthermore, it has been found that the compounds of formula I are also suitable for the defoliation and/or desiccation of plant parts, for which crop plants such as cotton, potato, oilseed rape, sunflower, soybean or field beans, in particular cotton, are suitable. In this regard, there have been found compositions for the desiccation and/or defoliation of plants, processes for preparing these compositions and methods for desiccating and/or defoliating plants using the compounds of formula I.
As desiccants, the compounds of formula I are particularly suitable for desiccating the above-ground parts of crop plants such as potato, oilseed rape, sunflower and soybean, but also cereals. This makes possible the fully mechanical harvesting of these important crop plants.
Also of economic interest is to facilitate harvesting, which is made possible by concentrating within a certain period of time the dehiscence, or reduction of adhesion to the tree, in citrus fruit, olives and other species and varieties of pomaceous fruit, stone fruit and nuts. The same mechanism, i.e. the promotion of the development of abscission tissue between fruit part or leaf part and shoot part of the plants is also essential for the readily controllable defoliation of useful plants, in particular cotton.
Moreover, a shortening of the time interval in which the individual cotton plants mature leads to an increased fiber quality after harvesting.
The compounds of formula I, or the herbicidal compositions comprising the compounds of formula I, can be used, for example, in the form of ready-to-spray aqueous solutions, powders, suspensions, also highly concentrated aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, materials for broadcasting, or granules, by means of spraying, atomizing, dusting, spreading, watering or treatment of the seed or mixing with the seed. The use forms depend on the intended purpose; in each case, they should ensure the finest possible distribution of the active ingredients according to the invention.
The herbicidal compositions comprise a herbicidally effective amount of at least one compound of the formula I or an agriculturally useful salt of I, and auxiliaries which are customary for the formulation of crop protection agents.
Examples of auxiliaries customary for the formulation of crop protection agents are inert auxiliaries, solid carriers, surfactants (such as dispersants, protective colloids, emulsifiers, wetting agents and tackifiers), organic and inorganic thickeners, bactericides, antifreeze agents, antifoams, if appropriate colorants and, for seed formulations, adhesives.
Examples of thickeners (i.e. compounds which impart to the formulation modified flow properties, i.e. high viscosity in the state of rest and low viscosity in motion) are polysaccharides, such as xanthan gum (Kelzan® from Kelco), Rhodopol® 23 (Rhone Poulenc) or Veegum® (from R.T. Vanderbilt), and also organic and inorganic sheet minerals, such as Attaclay® (from Engelhardt).
Examples of antifoams are silicone emulsions (such as, for example, Silikon® SRE, Wacker or Rhodorsil® from Rhodia), long-chain alcohols, fatty acids, salts of fatty acids, organofluorine compounds and mixtures thereof.
Bactericides can be added for stabilizing the aqueous herbicidal formulation. Examples of bactericides are bactericides based on diclorophen and benzyl alcohol hemiformal (Proxel® from ICI or Acticide® RS from Thor Chemie and Kathon® MK from Rohm & Haas), and also isothiazolinone derivates, such as alkylisothiazolinones and benzisothiazolinones (Acticide MBS from Thor Chemie).
Examples of antifreeze agents are ethylene glycol, propylene glycol, urea or glycerol.
Examples of colorants are both sparingly water-soluble pigments and water-soluble dyes. Examples which may be mentioned are the dyes known under the names Rhodamin B, C.I. Pigment Red 112 and C.I. Solvent Red 1, and also pigment blue 15:4, pigment blue 15:3, pigment blue 15:2, pigment blue 15:1, pigment blue 80, pigment yellow 1, pigment yellow 13, pigment red 112, pigment red 48:2, pigment red 48:1, pigment red 57:1, pigment red 53:1, pigment orange 43, pigment orange 34, pigment orange 5, pigment green 36, pigment green 7, pigment white 6, pigment brown 25, basic violet 10, basic violet 49, acid red 51, acid red 52, acid red 14, acid blue 9, acid yellow 23, basic red 10, basic red 108.
Examples of adhesives are polyvinylpyrrolidone, polyvinyl acetate, polyvinyl alcohol and tylose.
Suitable inert auxiliaries are, for example, the following:
mineral oil fractions of medium to high boiling point, such as kerosene and diesel oil, furthermore coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, for example paraffin, tetrahydronaphthalene, alkylated naphthalenes and their derivatives, alkylated benzenes and their derivatives, alcohols such as methanol, ethanol, propanol, butanol and cyclohexanol, ketones such as cyclohexanone or strongly polar solvents, for example amines such as N-methylpyrrolidone, and water.
Solid carriers are mineral earths such as silicas, silica gels, silicates, talc, kaolin, limestone, lime, chalk, bole, loess, clay, dolomite, diatomaceous earth, calcium sulfate, magnesium sulfate and magnesium oxide, ground synthetic materials, fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate and ureas, and products of vegetable origin, such as cereal meal, tree bark meal, wood meal and nutshell meal, cellulose powders, or other solid carriers.
Suitable surfactants (adjuvants, wetting agents, tackifiers, dispersants and also emulsifiers) are the alkali metal salts, alkaline earth metal salts and ammonium salts of aromatic sulfonic acids, for example lignosulfonic acids (e.g. Borrespers-types, Borregaard), phenolsulfonic acids, naphthalenesulfonic acids (Morwet types, Akzo Nobel) and dibutylnaphthalenesulfonic acid (Nekal types, BASF SE), and of fatty acids, alkyl- and alkylarylsulfonates, alkyl sulfates, lauryl ether sulfates and fatty alcohol sulfates, and salts of sulfated hexa-, hepta- and octadecanols, and also of fatty alcohol glycol ethers, condensates of sulfonated naphthalene and its derivatives with formaldehyde, condensates of naphthalene or of the naphthalenesulfonic acids with phenol and formaldehyde, polyoxyethylene octylphenol ether, ethoxylated isooctyl-, octyl- or nonylphenol, alkylphenyl or tributylphenyl polyglycol ether, alkylaryl polyether alcohols, isotridecyl alcohol, fatty alcohol/ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene alkyl ethers or polyoxypropylene alkyl ethers, lauryl alcohol polyglycol ether acetate, sorbitol esters, lignosulfite waste liquors and proteins, denatured proteins, polysaccharides (e.g. methylcellulose), hydrophobically modified starches, polyvinyl alcohol (Mowiol types Clariant), polycarboxylates (BASF SE, Sokalan types), polyalkoxylates, polyvinylamine (BASF SE, Lupamine types), polyethyleneimine (BASF SE, Lupasol types), polyvinylpyrrolidone and copolymers thereof.
Powders, materials for broadcasting and dusts can be prepared by mixing or grinding the active ingredients together with a solid carrier.
Granules, for example coated granules, impregnated granules and homogeneous granules, can be prepared by binding the active ingredients to solid carriers.
Aqueous use forms can be prepared from emulsion concentrates, suspensions, pastes, wettable powders or water-dispersible granules by adding water. To prepare emulsions, pastes or oil dispersions, the compounds of formula I or Ia, either as such or dissolved in an oil or solvent, can be homogenized in water by means of a wetting agent, tackifier, dispersant or emulsifier. Alternatively, it is also possible to prepare concentrates comprising active substance, wetting agent, tackifier, dispersant or emulsifier and, if desired, solvent or oil, which are suitable for dilution with water.
The concentrations of the compounds of formula I in the ready-to-use preparations can be varied within wide ranges. In general, the formulations comprise from 0.001 to 98% by weight, preferably 0.01 to 95% by weight of at least one active compound. The active compounds are employed in a purity of from 90% to 100%, preferably 95% to 100% (according to NMR spectrum).
The formulations or ready-to-use preparations may also comprise acids, bases or buffer systems, suitable examples being phosphoric acid or sulfuric acid, or urea or ammonia.
The compounds of formula I of the invention can for example be formulated as follows:
1. Products for Dilution with Water
A. Water-Soluble Concentrates
10 parts by weight of active compound are dissolved in 90 parts by weight of water or a water-soluble solvent. As an alternative, wetters or other adjuvants are added. The active compound dissolves upon dilution with water. This gives a formulation with an active compound content of 10% by weight.
B. Dispersible Concentrates
20 parts by weight of active compound are dissolved in 70 parts by weight of cyclohexanone with addition of 10 parts by weight of a dispersant, for example polyvinylpyrrolidone. Dilution with water gives a dispersion. The active compound content is 20% by weight.
C. Emulsifiable Concentrates
15 parts by weight of active compound are dissolved in 75 parts by weight of an organic solvent (e.g. alkylaromatics) with addition of calcium dodecylbenzenesulfonate and castor oil ethoxylate (in each case 5 parts by weight). Dilution with water gives an emulsion. The formulation has an active compound content of 15% by weight.
D. Emulsions
25 parts by weight of active compound are dissolved in 35 parts by weight of an organic solvent (e.g. alkylaromatics) with addition of calcium dodecylbenzenesulfonate and castor oil ethoxylate (in each case 5 parts by weight). This mixture is introduced into 30 parts by weight of water by means of an emulsifier (e.g. Ultraturrax) and made into a homogeneous emulsion. Dilution with water gives an emulsion. The formulation has an active compound content of 25% by weight.
E. Suspensions
In an agitated ball mill, 20 parts by weight of active compound are comminuted with addition of 10 parts by weight of dispersants and wetters and 70 parts by weight of water or an organic solvent to give a fine active compound suspension. Dilution with water gives a stable suspension of the active compound. The active compound content in the formulation is 20% by weight.
F. Water-Dispersible Granules and Water-Soluble Granules
50 parts by weight of active compound are ground finely with addition of 50 parts by weight of dispersants and wetters and made into water-dispersible or water-soluble granules by means of technical appliances (for example extrusion, spray tower, fluidized bed). Dilution with water gives a stable dispersion or solution of the active compound. The formulation has an active compound content of 50% by weight.
G. Water-Dispersible Powders and Water-Soluble Powders
75 parts by weight of active compound are ground in a rotor-stator mill with addition of 25 parts by weight of dispersants, wetters and silica gel. Dilution with water gives a stable dispersion or solution of the active compound. The active compound content of the formulation is 75% by weight.
H. Gel Formulations
In a ball mill, 20 parts by weight of active compound, 10 parts by weight of dispersant, 1 part by weight of gelling agent and 70 parts by weight of water or of an organic solvent are ground to give a fine suspension. Dilution with water gives a stable suspension with active compound content of 20% by weight.
2. Products to be Applied Undiluted
I. Dusts
5 parts by weight of active compound are ground finely and mixed intimately with 95 parts by weight of finely divided kaolin. This gives a dusting powder with an active compound content of 5% by weight.
J. Granules (GR, FG, GG, MG)
0.5 parts by weight of active compound are ground finely and associated with 99.5 parts by weight of carriers. Current methods here are extrusion, spray-drying or the fluidized bed. This gives granules to be applied undiluted with an active compound content of 0.5% by weight.
K. ULV solutions (UL)
10 parts by weight of active compound are dissolved in 90 parts by weight of an organic solvent, for example xylene. This gives a product to be applied undiluted with an active compound content of 10% by weight.
The compounds of formula I or the herbicidal compositions comprising them can be applied pre- or post-emergence, or together with the seed of a crop plant. It is also possible to apply the herbicidal compositions or active compounds by applying seed, pretreated with the herbicidal compositions or active compounds, of a crop plant. If the active compounds are less well tolerated by certain crop plants, application techniques may be used in which the herbicidal compositions are sprayed, with the aid of the spraying equipment, in such a way that as far as possible they do not come into contact with the leaves of the sensitive crop plants, while the active compounds reach the leaves of undesirable plants growing underneath, or the bare soil surface (post-directed, lay-by).
In a further embodiment, the compounds of formula I or the herbicidal compositions can be applied by treating seed.
The treatment of seed comprises essentially all procedures familiar to the person skilled in the art (seed dressing, seed coating, seed dusting, seed soaking, seed film coating, seed multilayer coating, seed encrusting, seed dripping and seed pelleting) based on the compounds of formula I according to the invention or the compositions prepared therefrom. Here, the herbicidal compositions can be applied diluted or undiluted.
The term seed comprises seed of all types, such as, for example, corns, seeds, fruits, tubers, cuttings and similar forms. Here, preferably, the term seed describes corns and seeds.
The seed used can be seed of the useful plants mentioned above, but also the seed of transgenic plants or plants obtained by customary breeding methods.
The rates of application of active compound are from 0.001 to 3.0, preferably 0.01 to 1.0, kg/ha of active substance (a.s.), depending on the control target, the season, the target plants and the growth stage. To treat the seed, the compounds of formula I are generally employed in amounts of from 0.001 to 10 kg per 100 kg of seed.
It may also be advantageous to use the compounds of formula I in combination with safeners. Safeners are chemical compounds which prevent or reduce damage to useful plants without substantially affecting the herbicidal action of the compounds of formula I on unwanted plants. They can be used both before sowing (for example in the treatment of seed, or on cuttings or seedlings) and before or after the emergence of the useful plant. The safeners and the compounds of formula I can be used simultaneously or in succession.
Suitable safeners are, for example, (quinolin-8-oxy)acetic acids, 1-phenyl-5-haloalkyl-1H-1,2,4-triazole-3-carboxylic acids, 1-phenyl-4,5-dihydro-5-alkyl-1H-pyrazole-3,5-dicarboxylic acids, 4,5-dihydro-5,5-diaryl-3-isoxazolecarboxylic acids, dichloroacetamides, alphaoximinophenylacetonitriles, acetophenone oximes, 4,6-dihalo-2-phenylpyrimidines, N-[[4-(aminocarbonyl)phenyl]sulfonyl]-2-benzamides, 1,8-naphthalic anhydride, 2-halo-4-(haloalkyl)-5-thiazolecarboxylic acids, phosphorothiolates and O-phenyl N-alkylcarbamates and their agriculturally useful salts and, provided that they have an acid function, their agriculturally useful derivatives, such as amides, esters and thioesters.
To broaden the activity spectrum and to obtain synergistic effects, the compounds of the formula I can be mixed and jointly applied with numerous representatives of other herbicidal or growth-regulating groups of active compounds or with safeners. Suitable mixing partners are, for example, 1,2,4-thiadiazoles, 1,3,4-thiadiazoles, amides, aminophosphoric acid and its derivatives, aminotriazoles, anilides, aryloxy/heteroaryloxyalkanoic acids and their derivatives, benzoic acid and its derivatives, benzothiadiazinones, 2-(hetaroyl/aroyl)-1,3-cyclohexanediones, heteroaryl aryl ketones, benzylisoxazolidinones, meta-CF3-phenyl derivatives, carbamates, quinoline carboxylic acid and its derivatives, chloroacetanilides, cyclohexenone oxime ether derivates, diazines, dichloropropionic acid and its derivatives, dihydrobenzofurans, dihydrofuran-3-ones, dinitroanilines, dinitrophenols, diphenyl ethers, dipyridyls, halocarboxylic acids and their derivatives, ureas, 3-phenyluracils, imidazoles, imidazolinones, N-phenyl-3,4,5,6-tetrahydrophthalimides, oxadiazoles, oxiranes, phenols, aryloxy- and heteroaryloxyphenoxypropionic esters, phenylacetic acid and its derivatives, 2-phenylpropionic acid and its derivatives, pyrazoles, phenylpyrazoles, pyridazines, pyridinecarboxylic acid and its derivatives, pyrimidyl ethers, sulfonamides, sulfonylureas, triazines, triazinones, triazolinones, triazolecarboxamides, uracils and also phenylpyrazolines and isoxazolines and their derivatives.
Moreover, it may be useful to apply the compounds of formula I alone or in combination with other herbicides or else also mixed with further crop protection agents, jointly, for example with compositions for controlling pests or phytopathogenic fungi or bacteria. Also of interest is the miscibility with mineral salt solutions which are employed for alleviating nutritional and trace element deficiencies. Other additives such as nonphytotoxic oils and oil concentrates may also be added.
Examples of herbicides which can be used in combination with the N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compounds of formula I according to the present invention are:
b1) from the group of the lipid biosynthesis inhibitors:
alloxydim, alloxydim-sodium, butroxydim, clethodim, clodinafop, clodinafop-propargyl, cycloxydim, cyhalofop, cyhalofop-butyl, diclofop, diclofop-methyl, fenoxaprop, fenoxaprop-ethyl, fenoxaprop-P, fenoxaprop-P-ethyl, fluazifop, fluazifop-butyl, fluazifop-P, fluazifop-P-butyl, haloxyfop, haloxyfop-methyl, haloxyfop-P, haloxyfop-P-methyl, metamifop, pinoxaden, profoxydim, propaquizafop, quizalofop, quizalofop-ethyl, quizalofop-tefuryl, quizalofop-P, quizalofop-P-ethyl, quizalofop-P-tefuryl, sethoxydim, tepraloxydim, tralkoxydim, benfuresate, butylate, cycloate, dalapon, dimepiperate, EPTC, esprocarb, ethofumesate, flupropanate, molinate, orbencarb, pebulate, prosulfocarb, TCA, thiobencarb, tiocarbazil, triallate and vernolate;
b2) from the group of the ALS inhibitors:
amidosulfuron, azimsulfuron, bensulfuron, bensulfuron-methyl, bispyribac, bispyribacsodium, chlorimuron, chlorimuron-ethyl, chlorsulfuron, cinosulfuron, cloransulam, cloransulammethyl, cyclosulfamuron, diclosulam, ethametsulfuron, ethametsulfuron-methyl, ethoxysulfuron, flazasulfuron, florasulam, flucarbazone, flucarbazone-sodium, flucetosulfuron, flumetsulam, flupyrsulfuron, flupyrsulfuron-methyl-sodium, foramsulfuron, halosulfuron, halosulfuron-methyl, imazamethabenz, imazamethabenz-methyl, imazamox, imazapic, imazapyr, imazaquin, imazethapyr, imazosulfuron, iodosulfuron, iodosulfuron-methyl-sodium, mesosulfuron, metosulam, metsulfuron, metsulfuron-methyl, nicosulfuron, orthosulfamuron, oxasulfuron, penoxsulam, primisulfuron, primisulfuron-methyl, propoxycarbazone, propoxycarbazone-sodium, prosulfuron, pyrazosulfuron, pyrazosulfuron-ethyl, pyribenzoxim, pyrimisulfan, pyriftalid, pyriminobac, pyriminobac-methyl, pyrithiobac, pyrithiobac-sodium, pyroxsulam, rimsulfuron, sulfometuron, sulfometuron-methyl, sulfosulfuron, thiencarbazone, thiencarbazone-methyl, thifensulfuron, thifensulfuron-methyl, triasulfuron, tribenuron, tribenuron-methyl, trifloxysulfuron, triflusulfuron, triflusulfuron-methyl and tritosulfuron;
b3) from the group of the photosynthesis inhibitors:
ametryn, amicarbazone, atrazine, bentazone, bentazone-sodium, bromacil, bromofenoxim, bromoxynil and its salts and esters, chlorobromuron, chloridazone, chlorotoluron, chloroxuron, cyanazine, desmedipham, desmetryn, dimefuron, dimethametryn, diquat, diquatdibromide, diuron, fluometuron, hexazinone, ioxynil and its salts and esters, isoproturon, isouron, karbutilate, lenacil, linuron, metamitron, methabenzthiazuron, metobenzuron, metoxuron, metribuzin, monolinuron, neburon, paraquat, paraquat-dichloride, paraquatdimetilsulfate, pentanochlor, phenmedipham, phenmedipham-ethyl, prometon, prometryn, propanil, propazine, pyridafol, pyridate, siduron, simazine, simetryn, tebuthiuron, terbacil, terbumeton, terbuthylazine, terbutryn, thidiazuron and trietazine;
b4) from the group of the protoporphyrinogen-IX oxidase inhibitors:
acifluorfen, acifluorfen-sodium, azafenidin, bencarbazone, benzfendizone, bifenox, butafenacil, carfentrazone, carfentrazone-ethyl, chlomethoxyfen, cinidon-ethyl, fluazolate, flufenpyr, flufenpyr-ethyl, flumiclorac, flumiclorac-pentyl, flumioxazin, fluoroglycofen, fluoroglycofen-ethyl, fluthiacet, fluthiacet-methyl, fomesafen, halosafen, lactofen, oxadiargyl, oxadiazon, oxyfluorfen, pentoxazone, profluazol, pyraclonil, pyraflufen, pyraflufen-ethyl, saflufenacil, sulfentrazone, thidiazimin, 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)pyrimidinyl]-4-fluoro-N-[(isopropyl)methylsulfamoyl]benzamide (H-1; CAS 372137-35-4), ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-3-yl)phenoxy]-2-pyridyloxy]acetate (H-2; CAS 353292-31-6), N-ethyl-3-(2,6-dichloro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (H-3; CAS 452098-92-9), N-tetrahydrofurfuryl-3-(2,6-dichloro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (H-4; CAS 915396-43-9), N-ethyl-3-(2-chloro-6-fluoro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (H-5; CAS 452099-05-7), N-tetrahydrofurfuryl-3-(2-chloro-6-fluoro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (H-6; CAS 45100-03-7), 3-[7-fluoro-3-oxo-4-(prop-2-ynyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl]-1,5-dimethyl-6-thioxo[1,3,5]triazinan-2,4-dione, 1,5-dimethyl-6-thioxo-3-(2,2,7-trifluoro-3-oxo-4-(prop-2-ynyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-1,3,5-triazinane-2,4-dione, 2-(2,2,7-Trifluoro-3-oxo-4-prop-2-ynyl-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-4,5,6,7-tetrahydro-isoindole-1,3-dione and 1-Methyl-6-trifluoromethyl-3-(2,2,7-trifluoro-3-oxo-4-prop-2-ynyl-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-1H-pyrimidine-2,4-dione;
b5) from the group of the bleacher herbicides:
aclonifen, amitrol, beflubutamid, benzobicyclon, benzofenap, clomazone, diflufenican, fluridone, flurochloridone, flurtamone, isoxaflutole, mesotrione, norflurazon, picolinafen, pyrasulfutole, pyrazolynate, pyrazoxyfen, sulcotrione, tefuryltrione, tembotrione, topramezone, 4-hydroxy-3-[[2-[(2-methoxyethoxy)methyl]-6-(trifluoromethyl)-3-pyridyl]carbonyl]bicyclo[3.2.1]oct-3-en-2-one (H-7; CAS 352010-68-5) and 4-(3-trifluoromethylphenoxy)-2-(4-trifluoromethylphenyl)pyrimidine (H-8; CAS 180608-33-7);
b6) from the group of the EPSP synthase inhibitors:
glyphosate, glyphosate-isopropylammonium and glyphosate-trimesium (sulfosate);
b7) from the group of the glutamine synthase inhibitors:
bilanaphos (bialaphos), bilanaphos-sodium, glufosinate and glufosinate-ammonium;
b8) from the group of the DHP synthase inhibitors: asulam;
b9) from the group of the mitose inhibitors:
amiprophos, amiprophos-methyl, benfluralin, butamiphos, butralin, carbetamide, chlorpropham, chlorthal, chlorthal-dimethyl, dinitramine, dithiopyr, ethalfluralin, fluchloralin, oryzalin, pendimethalin, prodiamine, propham, propyzamide, tebutam, thiazopyr and trifluralin;
b10) from the group of the VLCFA inhibitors:
acetochlor, alachlor, anilofos, butachlor, cafenstrole, dimethachlor, dimethanamid, dimethenamid-P, diphenamid, fentrazamide, flufenacet, mefenacet, metazachlor, metolachlor, metolachlor-S, naproanilide, napropamide, pethoxamid, piperophos, pretilachlor, propachlor, propisochlor, pyroxasulfone (KIH-485) and thenylchlor;
Compounds of the formula 2:
in which the variables have the following meanings:
Y is phenyl or 5- or 6-membered heteroaryl as defined at the outset, which radicals may be substituted by one to three groups Raa; R21, R22, R23, R24 are H, halogen or C1-C4-alkyl; X is O or NH; N is 0 or 1.
Compounds of the formula 2 have in particular the following meanings:
Y is
where # denotes the bond to the skeleton of the molecule; and
R21, R22, R23, R24 are H, Cl, F or CH3; R25 is halogen, C1-C4-alkyl or C1-C4-haloalkyl; R26 is C1-C4-alkyl; R27 is halogen, C1-C4-alkoxy or C1-C4-haloalkoxy; R28 is H, halogen, C1-C4-alkyl, C1-C4-haloalkyl or C1-C4-haloalkoxy; M is 0, 1, 2 or 3; X is oxygen; N is 0 or 1.
Preferred compounds of the formula 2 have the following meanings:
R21 is H; R22, R23 are F; R24 is H or F; X is oxygen; N is 0 or 1.
Particularly preferred compounds of the formula 2 are:
3-[5-(2,2-difluoroethoxy)-1-methyl-3-trifluoromethyl-1H-pyrazol-4-ylmethanesulfonyl]-4-fluoro-5,5-dimethyl-4,5-dihydroisoxazole (2-1); 3-{[5-(2,2-difluoroethoxy)-1-methyl-3-trifluoromethyl-1H-pyrazol-4-yl]fluoromethanesulfonyl}-5,5-dimethyl-4,5-dihydroisoxazole (2-2); 4-(4-fluoro-5,5-dimethyl-4,5-dihydroisoxazole-3-sulfonylmethyl)-2-methyl-5-trifluoromethyl-2H[1,2,3]triazole (2-3); 4-[(5,5-dimethyl-4,5-dihydroisoxazole-3-sulfonyl)fluoromethyl]-2-methyl-5-trifluoromethyl-2H-[1,2,3]triazole (2-4); 4-(5,5-dimethyl-4,5-dihydroisoxazole-3-sulfonylmethyl)-2-methyl-5-trifluoromethyl-2H-[1,2,3]triazole (2-5); 3-{[5-(2,2-difluoroethoxy)-1-methyl-3-trifluoromethyl-1H-pyrazol-4-yl]difluoromethanesulfonyl}-5,5-dimethyl-4,5-dihydroisoxazole (2-6); 4-[(5,5-dimethyl-4,5-dihydroisoxazole-3-sulfonyl)difluoromethyl]-2-methyl-5-trifluoromethyl-2H[1,2,3]triazole (2-7); 3-{[5-(2,2-difluoroethoxy)-1-methyl-3-trifluoromethyl-1H-pyrazol-4-yl]difluoromethanesulfonyl}-4-fluoro-5,5-dimethyl-4,5-dihydroisoxazole (2-8); 4-[difluoro-(4-fluoro-5,5-dimethyl-4,5-dihydroisoxazole-3-sulfonyl)methyl]-2-methyl-5-trifluoromethyl-2H[1,2,3]triazole (2-9);
b11) from the group of the cellulose biosynthesis inhibitors:
chlorthiamid, dichlobenil, flupoxam and isoxaben;
b12) from the group of the decoupler herbicides:
dinoseb, dinoterb and DNOC and its salts;
b13) from the group of the auxin herbicides:
2,4-D and its salts and esters, 2,4-DB and its salts and esters, aminopyralid and its salts such as aminopyralid-tris(2-hydroxypropyl)ammonium and its esters, benazolin, benazolin-ethyl, chloramben and its salts and esters, clomeprop, clopyralid and its salts and esters, dicamba and its salts and esters, dichlorprop and its salts and esters, dichlorprop-P and its salts and esters, fluroxypyr, fluroxypyr-butometyl, fluroxypyr-meptyl, MCPA and its salts and esters, MCPAthioethyl, MCPB and its salts and esters, mecoprop and its salts and esters, mecoprop-P and its salts and esters, picloram and its salts and esters, quinclorac, quinmerac, TBA (2,3,6) and its salts and esters, triclopyr and its salts and esters, and 5,6-dichloro-2-cyclopropyl-4-pyrimidinecarboxylic acid (H-9; CAS 858956-08-8) and its salts and esters;
b14) from the group of the auxin transport inhibitors: diflufenzopyr, diflufenzopyr-sodium, naptalam and naptalam-sodium;
b15) from the group of the other herbicides: bromobutide, chlorflurenol, chlorflurenolmethyl, cinmethylin, cumyluron, dalapon, dazomet, difenzoquat, difenzoquat-metilsulfate, dimethipin, DSMA, dymron, endothal and its salts, etobenzanid, flamprop, flamprop-isopropyl, flamprop-methyl, flamprop-M-isopropyl, flamprop-M-methyl, flurenol, flurenol-butyl, flurprimidol, fosamine, fosamine-ammonium, indanofan, maleic hydrazide, mefluidide, metam, methyl azide, methyl bromide, methyl-dymron, methyl iodide, MSMA, oleic acid, oxaziclomefone, pelargonic acid, pyributicarb, quinoclamine, triaziflam, tridiphane and 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)-4-pyridazinol (H-10; CAS 499223-49-3) and its salts and esters.
Examples of preferred safeners C are benoxacor, cloquintocet, cyometrinil, cyprosulfamide, dichlormid, dicyclonone, dietholate, fenchlorazole, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen, mefenpyr, mephenate, naphthalic anhydride, oxabetrinil, 4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane (H-11; MON4660, CAS 71526-07-3) and 2,2,5-trimethyl-3-(dichloroacetyl)-1,3-oxazolidine (H-12; R-29148, CAS 52836-31-4).
The active compounds of groups b1) to b15) and the safeners C are known herbicides and safeners, see, for example, The Compendium of Pesticide Common Names (http://www.alanwood.net/pesticides/); B. Hock, C. Fedtke, R. R. Schmidt, Herbizide [Herbicides], Georg Thieme Verlag, Stuttgart, 1995. Further herbicidally active compounds are known from WO 96/26202, WO 97/41116, WO 97/41117, WO 97/41118, WO 01/83459 and WO 2008/074991 and from W. Kramer et al. (ed.) “Modern Crop Protection Compounds”, Vol. 1, Wiley VCH, 2007 and the literature quoted therein.
The invention also relates to compositions in the form of a crop protection composition formulated as a 1-component composition comprising an active compound combination comprising at least one N-(tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamide compound of the formula I and at least one further active compound, preferably selected from the active compounds of groups b1 to b15, and at least one solid or liquid carrier and/or one or more surfactants and, if desired, one or more further auxiliaries customary for crop protection compositions. The invention also relates to compositions in the form of a crop protection composition formulated as a 2-component composition comprising a first component comprising at least one compound of the formula I, a solid or liquid carrier and/or one or more surfactants and a second component comprising at least one further active compound selected from the active compounds of groups b1 to b15, a solid or liquid carrier and/or one or more surfactants, where additionally both components may also comprise further auxiliaries customary for crop protection compositions.
In binary compositions comprising at least one compound of the formula I as component A and at least one herbicide B, the weight ratio of the active compounds A:B is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1. In binary compositions comprising at least one compound of the formula I as component A and at least one safener C, the weight ratio of the active compounds A:C is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1.
In ternary compositions comprising both at least one compound of the formula I as component A, at least one herbicide B and at least one safener C, the relative parts by weight of the components A:B are generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1; the weight ratio of the components A:C is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1; and the weight ratio of the components B:C is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1. Preferably, the weight ratio of the components A+B to the component C is in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1.
Examples of particularly preferred compositions according to the invention comprising in each case one individualized compound of the formula I and one mixing partner or a mixing partner combination are given in Table B below.
A further aspect of the invention relates to the compositions B-1 to B-1236 listed in Table B below, where in each case one row of Table B corresponds to a herbicidal composition comprising one of the compounds of formula I individualized in the above description (component 1) and the further active compound from groups b1) to b15) and/or safener C stated in each case in the row in question (component 2). The active compounds in the compositions described are in each case preferably present in synergistically effective amounts.
The compounds of formula I and the compositions according to the invention may also have a plant-strengthening action. Accordingly, they are suitable for mobilizing the defense system of the plants against attack by unwanted microorganisms, such as harmful fungi, but also viruses and bacteria. Plant-strengthening (resistance-inducing) substances are to be understood as meaning, in the present context, those substances which are capable of stimulating the defense system of treated plants in such a way that, when subsequently inoculated by unwanted microorganisms, the treated plants display a substantial degree of resistance to these microorganisms.
The compounds of formula I can be employed for protecting plants against attack by unwanted microorganisms within a certain period of time after the treatment. The period of time within which their protection is effected generally extends from 1 to 28 days, preferably from 1 to 14 days, after the treatment of the plants with the compounds of formula I, or, after treatment of the seed, for up to 9 months after sowing.
The compounds of formula I and the compositions according to the invention are also suitable for increasing the harvest yield.
Moreover, they have reduced toxicity and are tolerated well by the plants.
The following examples will further illustrate the invention:
With appropriate modification of the starting materials, the procedures given in the synthesis examples below were used to obtain further compounds I. The compounds obtained in this manner are listed in the tables that follow, together with physical data. The products shown below were characterized by determination of the melting point, NMR spectroscopy or the masses ([m/z]) determined by HPLC-MS spectrometry.
HPLC-MS=high performance liquid chromatography coupled with mass spectrometry;
HPLC column: RP-18 column (Chromolith Speed ROD from Merck KgaA, Germany), 50*4.6 mm; mobile phase: acetonitrile+0.1% trifluoroacetic acid (TFA)/water+0.1% TFA, using a gradient from 5:95 to 100:0 over 5 minutes at 40° C., flow rate 1.8 mL/min.
MS: quadrupole electrospray ionization, 80 V (positive mode).
HPLC column: Luna-C18(2) 5 μm column (Phenomenex), 2.0*50 mm; mobile phase: acetonitrile+0.0625% trifluoroacetic acid (TFA)/water+0.0675% TFA, using a gradient from 10:90 to 80:20 over 4.0 minutes at 40° C., flow rate 0.8 mL/min.
MS: quadrupole electrospray ionization, 70 V (positive mode).
EtOAc: acetic acid ethyl ester
THF: tetrahydrofuran
LiHMDS: lithium bis(trimethylsilyl)amide
m-CPBA: 3-chloroperoxybenzoic acid
TFA: trifluoroacetic acid
n-BuLi: n-butyllithium
DMF: N,N-dimethylformamide
Et2O: diethyl ether
Cu-powder (5.3 g) was added with stirring to 2,6-dichloro-4-fluoro-aniline (100 g, 0.56 mol) dissolved in diethyldisulfide (400 mL) and the mixture was heated at 80° C. Tert-butyl nitrite (86 g, 1.5 equiv.) was added slowly over a period of 1 hour (exothermic reaction) and stirring was continued for an additional hour at 80° C.
Work-up: Excess diethyl disulfide was evaporated in vacuo and the residual crude was treated with diluted aqueous hydrochloric acid. The aqueous phase was extracted with toluene. Thr organic phase was washed sequentially with hydrochloric acid and water, dried over magnesium sulfate. Evaporation of the solvent gave 1,3-dichloro-2-ethylsulfanyl-5-fluoro-benzene as a brownish oil (111 g, 0.50 mol, 89%) which was used without further purification in the next step.
1H NMR (CDCl3, 400 MHz): •=7.2 (d, 2H), 2.9 (q, 2H), 1.2 (t, 3H).
Under argon, a solution of n-BuLi (1.6 M, 1.2 equiv.) in THF was added with stirring to a solution of 1,3-dichloro-5-fluoro-2-ethylsulfanyl-benzene (111 g, 0.49 mol) in anhydrous THF (1.4 L) at −70° C. After one hour of stirring, carbon dioxide was passed through this solution in excess. This reaction mixture was warmed to room temperature and poured into a solution of sodium hydroxide (2 M, aq. solution, 2 L) and washed with t-butyl-methyl ether. The organic phase was discarded. The aqueous phase was acidified with hydrochloric acid (2 M, aq. solution) until pH=4 and extracted with t-butyl-methyl ether, then the aqueous was further acidified to pH=3 and extracted with t-butyl-methyl ether. The combined organic phases were dried over magnesium sulfate and the solvent removed to give 2,4-dichloro-3-ethylsulfanyl-6-fluorobenzoic acid (56 g, 0.21 mol, 43%).
1H NMR (CDCl3, 400 MHz): •=ca. 10.9 (br s, 1H), 7.3 (d, 1H), 2.9 (q, 2H), 1.25 (t, 3H).
Thionyl chloride (21 g, 0.18 mol) and 2 drops of DMF were slowly added to a stirred solution of 2,4-dichloro-3-ethylsulfanyl-6-fluoro-benzoic acid (30 g, 0.12 mol) in toluene (300 mL) at room temperature. The mixture was heated under reflux for 1.5 hours. The reaction was cooled to room temperature and the solvent removed by vacuoto give 2,4-dichloro-3-ethylsulfanyl-6-fluoro-benzoyl chloride as a brown oil (32 g, 0.12 mol, quant.) used immediately in the next step.
Under argon, a methyl lithium solution (0.22 mol) was added dropwise to a solution of 1-methyltetrazol-5-amine (22 g, 0.22 mol) in THF at −70° C. The reaction was warmed to 0° C. and a solution of 2,4-dichloro-3-ethylsulfanyl-6-fluoro-benzoyl chloride (31 g, 0.11 mol) in THF was slowly added. The mixture was let to warm to room temperature and was stirred for an additional 30 min at room temperature.
Work-up: the reaction mixture was poured into water and extracted with ethyl acetate. The organic phase was sequentially washed with hydrochloric acid (aq. sol, 0.5 M) and a 1:1 mixture of water and brine and dried over magnesium sulfate. Evaporation of the solvent afforded 2,4-dichloro-3-ethylsulfanyl-6-fluoro-N-(1-methyltetrazol-5-yl)benzamide as a brownish solid (29 g, 0.083 mol, 75%).
1H NMR (THF, 400 MHz): •=ca. 11.2 (br s, 1H), 7.65 (d, 1H), 4.05 (s, 3H), 2.9 (q, 2H), 1.2 (t, 3H).
Na2WO4.2H2O (0.33 g, 1 mmol) was added to a solution of 2,4-dichloro-3-ethylsulfanyl-6-fluoro-N-(1-methyltetrazol-5-yl)benzamide (7 g, 20 mmol) in glacial acetic acid (150 mL). Hydrogen peroxide (30% solution in water, 20 mmol) was added at room temperature and the reaction mixture was let to stir overnight. The solvent was removed in vacuo and the crude dissolved in ethyl acetate and washed with water (3 times). The organic phase was dried over magnesium sulfate and the solvent removed in vacuo to give 2,4-dichloro-3-ethylsulfinyl-6-fluoro-N-(1-methyltetrazol-5-yl)benzamide as a white powder (5.8 g, 15.9 mmol, 80%).
1H NMR (THF, 400 MHz): •=ca. 11.3 (br s, 1H), 7.65 (d, 1H), 4.05 (s, 3H), 3.2-3.5 (m, 2H), 1.3 (t, 3H).
Na2WO4.2H2O (0.71 g, 3 mmol) was added to a solution of 2,4-dichloro-3-ethylsulfanyl-6-fluoro-N-(1-methyltetrazol-5-yl)benzamide (15.0 g, 40 mmol) in glacial acetic acid (150 mL) at room temperature. Hydrogen peroxide (30% solution in water, 0.4 mol) was added and the reaction was stirred at 70° C. overnight (the product precipitates). The solvent was removed in vacuo and the crude dissolved in ethyl acetate and washed with water (3 times). The organic phase was dried over magnesium sulfate and the solvent removed in vacuo to give 2,4-dichloro-3-ethylsulfonyl-6-fluoro-N-(1-methyltetrazol-5-yl)benzamide as a white powder (13.2 g, 34 mmol, 85%).
1H NMR (DMSO, 500 MHz): •=ca. 12.3 (br s, 1H), 8.2 (d, 1H), 4.0 (s, 3H), 3.6 (q, 2H), 1.25 (t, 3H).
Cesium carbonate (35 g, 0.11 mol) was added with stirring to a solution of 2,6-dichloro-4-fluoro-phenol (10 g, 0.055 mol)) in DMF (50 mL) at room temperature. After 30 min, 3-bromo-1,1,1-trifluoro-propane (11.65 mL, 0.11 mol) was added and the reaction stirred for another 30 min at room temperature before being heated to 80° C. overnight. The next day, the reaction was cooled to room temperature and 1 more equivalent of 3-bromo-1,1,1-trifluoro-propane was added and the mixture stirred at room temperature over the week-end. With stirring, brine (150 mL) and Et2O (100 mL) were added and the phase separated. The organic phase was washed with brine (3×100 mL), dried (MgSO4) and the solvent removed to afford 1,3-dichloro-5-fluoro-2-(3,3,3-trifluoropropoxy)benzene (10.2 g, 0.037 mol, 67%), pure enough to be used in the next step without further purification.
1H NMR (CDCl3, 400 MHz): •=7.06 (d, 2H, J=7.8 Hz), 4.17 (t, 2H, J=6.8 Hz), 2.7 (m, 2H)
Under argon, a solution of n-BuLi (2.5 M, 15.57 mL, 0.039 mol) in THF was slowly added with stirring to a solution of 1,3-dichloro-5-fluoro-2-(3,3,3-trifluoropropoxy)benzene (10.2 g, 0.037 mol) in anhydrous THF (100 mL) at −78° C. After one hour, carbon dioxide was passed through this solution in excess. The reaction mixture was let to warm to room temperature and stirred overnight. The next day, the reaction was poured into a solution of sodium hydroxide (1 M, 100 mL) and washed with t-butyl-methyl ether (100 mL). The phases were separated and the organic phase discarded. The aqueous phase was acidified with hydrochloric acid (2M aq. solution) until pH=1 and extracted with t-butyl-methyl ether (2×50 mL). The combined organic phases were dried over magnesium sulfate and the solvent removed to give 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoic acid as a white solid (10.50 g, 0.033 mol, 84%).
1H NMR (MeOD, 400 MHz): •=7.23 (d, 1H, J=8 Hz), 4.19 (t, 2H, J=6.3 Hz), 2.75 (m, 2H)
2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoic acid (4 g, 0.012 mol) was suspended in toluene (50 mL) and treated with thionyl chloride (5 mL, 0.068 mol) and 2 drops of DMF. The mixture was heated under reflux for 1.5 hours. The reaction was cooled to room temperature and the solvent evaporated to give 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoyl chloride (4.2 g, 100%) as a brown oil used immediately in the next step.
Under argon, a methyl lithium solution in Et2O (1 M, 2.45 mL, 2.45 mmol) was added dropwise to a solution of 2-methyl-1,2,4-triazol-3-amine (240 mg, 2.45 mmol) in THF (8 mL) at −78° C. The reaction was warmed to 0° C. and let to stir at this temperature for 30 min. After which time, the reaction was cooled to −78° C. and a solution of 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoyl chloride (420 mg, 1.23 mmol) in THF (6 mL) was added over 30 min. The mixture was let to warm to room temperature and stirred overnight.
With stirring, water (15 mL), brine (30 mL) and EtOAc (50 mL) were added and the phase separated. The organic phase was dried (MgSO4) and the solvent removed. Purification by column chromatography (100% Et2O) gave 2,4-dichloro-6-fluoro-N-(2-methyl-1,2,4-triazol-3-yl)-3-(3,3,3-trifluoropropoxy)benzamide (140 mg, 0.35 mmol, 28%) as a beige solid.
1H NMR (DMSO, 400 MHz): •=7.9 (s, 1H), 7.85 (d, 1H, J=9 Hz), 4.2 (t, 2H, J=5.6 Hz), 3.75 (s, 3H), 2.88 (m, 2H)
Under argon, a methyl lithium solution in Et2O (3 M, 2.1 mL, 6.24 mmol) was added dropwise to a solution of 2-ethyl-1,2,4-triazol-3-amine (700 mg, 6.24 mmol) in THF (15 mL) at −78° C. The reaction was warmed to 0° C. and let to stir at this temperature for 30 min. After which time, the reaction was cooled to −78° C. and a solution of 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoyl chloride (1.06 g, 3.12 mmol) in THF (6 mL) was added over 30 min. The mixture was let to warm to room temperature and stirred overnight.
Upon stirring, water (15 mL), brine (30 mL) and EtOAc (50 mL) were added and the phase separated. The organic phase was dried (MgSO4) and the solvent removed. After preparative HPLC, 2,4-dichloro-N-(2-ethyl-1,2,4-triazol-3-yl)-6-fluoro-3-(3,3,3-trifluoropropoxy)-benzamide (32 mg, 0.077 mmol, 2.5%) was obtained as a white solid.
1H NMR (MeOD, 400 MHz): •=7.95 (s, 1H), 7.52 (d, 1H, J=8.5 Hz), 4.25 (t, 2H, J=6 Hz), 4.20 (q, 2H, J=7.2 Hz), 2.80 (m, 2H), 1.5 (t, 3H, 7.2 Hz)
Under argon, a methyl lithium solution in Et2O (1 M, 2.45 mL, 2.45 mmol) was added dropwise to a solution of 1-(2-methoxyethyl)tetrazol-5-amine (350 mg, 2.45 mmol) in THF (8 mL) at −78° C. The reaction was warmed to 0° C. and let to stir at this temperature for 30 min.
After which time, the reaction was cooled to −78° C. and a solution of 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoyl chloride (420 mg, 1.23 mmol) in THF (6 mL) was added over 30 min. The mixture was let to warm to room temperature and stirred overnight.
Upon stirring, water (15 mL), brine (30 mL) and EtOAc (50 mL) were added and the phase separated. The organic phase was dried (MgSO4) and the solvent removed. Purification by column chromatography (20:0.1 CH2C12:MeOH) gave 2,4-dichloro-6-fluoro-N-[1-(2-methoxyethyl)tetrazol-5-yl]-3-(3,3,3-trifluoropropoxy)benzamide (120 mg, 0.27 mmol, 22%) as a beige solid.
1H NMR (DMSO, 400 MHz): •=7.57 (d, 1H, J=8.4 Hz), 4.3 (t, 2H, J=5.5 Hz), 4.15 (t, 2H, J=5.8 Hz), 3.70 (t, 2H, J=5.5 Hz), 3.20 (s, 3H), 2.85 (m, 2H)
Under argon, a methyl lithium solution in Et2O (3 M, 0.82 mL, 2.45 mmol) was added dropwise to a solution of 1-ethyltetrazol-5-amine (280 mg, 2.45 mmol) in THF (8 mL) at −78° C. The reaction was warmed to 0° C. and let to stir at this temperature for 30 min. After which time, the reaction was cooled to −78° C. and a solution of 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoyl chloride (420 mg, 1.23 mmol) in THF (6 mL) was added over 30 min. The mixture was let to warm to room temperature and stirred overnight.
Upon stirring, water (15 mL), brine (30 mL) and EtOAc (50 mL) were added and the phase separated. The organic phase was dried (MgSO4) and the solvent removed. Purification by column chromatography (100% CH2C12 then 20:1 CH2C12:THF) gave 2,4-dichloro-N-(1-ethyltetrazol-5-yl)-6-fluoro-3-(3,3,3-trifluoropropoxy)benzamide (50 mg, 0.12 mmol, 9%) as a beige solid.
1H NMR (DMSO, 400 MHz): •=7.87 (d, 1H, J=7.5 Hz), 4.34 (q, 2H, J=7.3 Hz), 4.20 (t, 2H, J=4.9 Hz), 2.87 (m, 2H), 1.46 (t, 3H, 7.3 Hz)
Under argon, a methyl lithium solution in Et2O (3 M, 1.7 mL, 5 mmol) was added dropwise to a solution of 1-methyltetrazol-5-amine (500 mg, 5 mmol) in THF (8 mL) at −78° C. The reaction was warmed to 0° C. and let to stir at this temperature for 30 min. After which time, the reaction was cooled to −78° C. and a solution of 2,4-dichloro-6-fluoro-3-(3,3,3-trifluoropropoxy)benzoyl chloride (850 mg, 2.5 mmol) in THF (6 mL) was added over 30 min. The mixture was let to warm to room temperature and stirred overnight.
The reaction mixture was poured into water (25 mL) and acidified with hydrochloric acid (aq. sol, 1 M, 25 mL). EtOAc was added (50 mL) and the phase separated. The organic phase was dried (MgSO4) and the solvent removed. Purification by column chromatography (20:0.1 CH2Cl2:MeOH) gave 2,4-dichloro-6-fluoro-N-(1-methyltetrazol-5-yl)-3-(3,3,3-trifluoropropoxy)benzamide (510 mg, 1.27 mmol, 51%) as a white solid.
1H NMR (DMSO, 400 MHz): •=7.89 (d, 1H, J=8.6 Hz), 4.2 (t, 2H, J=5.2 Hz), 3.98 (s, 3H), 2.88 (m, 2H)
By analogy to the methods described in the Examples above, the following compounds of formula I according to Table 9 were prepared:
The herbicidal activity of the compounds of the formula I was demonstrated by the following greenhouse experiments:
The culture containers used were plastic flowerpots containing loamy sand with approximately 3.0% of humus as the substrate. The seeds of the test plants were sown separately for each species.
For the pre-emergence treatment, the active ingredients, which had been suspended or emulsified in water, were applied directly after sowing by means of finely distributing nozzles. The containers were irrigated gently to promote germination and growth and subsequently covered with transparent plastic hoods until the plants had rooted. This cover caused uniform germination of the test plants, unless this has been impaired by the active ingredients.
For the post-emergence treatment, the test plants were first grown to a height of 3 to 15 cm, depending on the plant habit, and only then treated with the active ingredients which had been suspended or emulsified in water. For this purpose, the test plants were either sown directly and grown in the same containers, or they were first grown separately as seedlings and transplanted into the test containers a few days prior to treatment.
Depending on the species, the plants were kept at 10-25° C. or 20-35° C. The test period extended over 2 to 4 weeks. During this time, the plants were tended, and their response to the individual treatments was evaluated.
Evaluation was carried out using a scale from 0 to 100. 100 means no emergence of the plants, or complete destruction of at least the aerial moieties, and 0 means no damage, or normal course of growth. A good herbicidal activity is given at values of at least 70 and a very good herbicidal activity is given at values of at least 85.
The plants used in the greenhouse experiments belonged to the following species:
Abutilon theophrasti
Alopecurus agrestis
Amaranthus retroflexus
Agrostis spica-venti
Avena fatua
Chenopodium album
Echinochloa crus-galli
Lolium multiflorum
Polygonum convolvulus
Setaria faberi
Setaria viridis
Following representative compounds of formula I according to Table 9 were used in post-emergence treatments in greenhouse experiments (values labeled with * result from pre-emergence experiments):
| Number | Date | Country | Kind |
|---|---|---|---|
| 13167863.3 | May 2013 | EP | regional |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2014/059031 | 5/5/2014 | WO | 00 |
