The present invention relates to fungicidal mixtures, comprising as active components
1) a 5-chloro-6-phenyl-7-heterocyclylaminotriazolopyrimidine of the formula I,
2) at least one active compound II selected from the following groups:
Moreover, the invention relates to novel fungicidal triazolopyrimidines, to a method for controlling harmful fungi using mixtures of a compound I with an active compound of groups A) to R) and to the use of the compounds I with the active compounds of groups A) to R) for preparing such mixtures, and also to compositions comprising such mixtures.
The compounds I referred to above as component 1, their preparation and their action against harmful fungi are proposed in a general manner in the literature (U.S. Pat. No. 5,593,996). Individual compounds of the formula I are known from U.S. Pat. No. 5,593,996; WO 02/02563; WO 02/94020).
Mixtures of 5-chlorotriazolopyrimidines with various active compounds are known in a general manner from EP-A 988 790 and U.S. Pat. No. 6,268,371.
It is an object of the present invention, with a view to reducing the application rates of the known compounds, to provide novel active compounds or mixtures which, at a reduced total amount of active compounds applied, have improved activity against harmful fungi.
Accordingly, the mixtures defined at the outset and novel active compounds have been found. Moreover, it has been found that simultaneous, that is joint or separate, application of a compound I and an active compound II from groups A) to R) or successive application of a compound I and an active compound from groups A) to R) allows better control of harmful fungi than is possible with the individual compounds (synergistic mixtures).
Suitable for use according to the invention are in particular the compounds compiled in the following table, where the groups D and L have the following meanings:
Compounds I in which L is methyl and D has one of the meanings below:
—(CH2)4—; —CH2—CH(CH3)—CH2—CH2—; —CH(CH3)—CH(CH3)—CH2—CH2—; —CH2—CH(CH3)—CH(CH3)—CH2—; —CH(CH3)—CH2—CH(CH3)—CH2—; —(CH2)5—; —CH(CH3)—CH2—CH2—CH2—CH2—; —CH(CH3)—CH2—CH2—CH(CH3)—; —CH2—CH2—CH(CH3)—CH2—CH2—; —CH(CH3)—CH(CH3)—CH2—CH2—CH2—; —CH(CH3)—CH2—CH(CH3)—CH2—CH2—; —CH(CH3)—CH2—CH2—CH(CH3)—CH2—; —CH(CH3)—CH2—CH2—CH2—CH(CH3)—; —CH2—CH(CH3)—CH(CH3)—(CH2)2—; —CH2—CH(CH3)—CH2—CH(CH3)—CH2—; —(CH2)2—CH(CH[CH3]2)—(CH2)2—; —CH(CH2CH3)—CH2—CH2—CH2—CH2—; —CH—CH(CH2CH3)—CH2—CH2—CH2—; —CH2—CH2—CH(CH2CH3)—CH2—CH2—; —CH2—CH2—CH(CH2CH2CH3)—CH2—CH2—; —CH2—CH2—CH(C[CH3]3)—CH2—CH2— and —(CH2)6— are novel. They are a preferred subject matter of the invention.
In addition, preference is also given to compounds I in which L is fluorine and D has one of the meanings below:
(CH2)4—; —CH2—CH(CH3)—CH2—CH2—; —CH(CH3)—CH(CH3)—CH2—CH2—; —CH(CH3)—CH2—CH(CH3)—CH2—; —CH(CH3)—CH2—CH2—CH(CH3)—; —CH2—CH(CH3)—CH2—CH2—CH2—; —CH2—CH2—CH(CH3)—CH2—CH2—; —CH2—CH(CH3)—CH(CH3)—CH2—; —CH(CH3)—CH(CH3)—CH2—CH2—CH2—; —CH(CH3)—CH2—CH(CH3)—CH2—CH2—; —CH(CH3)—CH2—CH2—CH(CH3)—CH2—; —CH(CH3)—CH2—CH2—CH2—CH(CH3)—; —CH2—CH(CH3)—CH(CH3)—(CH2)2—; —CH2—CH(CH3)—CH2—CH(CH3)—CH2—; —(CH2)2—CH(CH[CH3]2)—(CH2)2—; —CH(CH2CH3)—CH2—CH2—CH2—CH2—; —CH—CH(CH2CH3)—CH2—CH2—CH2—; —CH2—CH2—CH(CH2CH3)—CH2—CH2—; —CH2—CH2—CH(CH2CH2CH3)—CH2—CH2— and —CH2—CH2—CH(C[CH3]3)—CH2—CH2—. These compounds, too, are novel.
In addition, preference is also given to compounds I in which L is chlorine and D has one of the meanings below:
—CH(CH3)—CH(CH3)—CH2—CH2—; —CH2—CH(CH3)—CH2—CH2—; —CH(CH3)—CH2—CH(CH3)—CH2—; —CH(CH3)—CH2—CH2—CH(CH3)—; —CH2—CH(CH3)—CH(CH3)—CH2—; —CH(CH3)—CH(CH3)—CH2—CH2—CH2—; —CH(CH3)—CH2—CH2—CH(CH3)—CH2—; —CH(CH3)—CH2—CH2—CH2—CH(CH3)—; —CH2—CH(CH3)—CH(CH3)—(CH2)2—; —(CH2)2—CH(CH[CH3]2)—(CH2)2—; —CH(CH2CH3)—CH2—CH2—CH2—CH2—; —CH—CH(CH2CH3)—CH2—CH2—CH2—; —CH2—CH2—CH(CH2CH3)—CH2—CH2—; —CH2—CH2—CH(CH2CH2CH3)—CH2—CH2— and —CH2—CH2—CH(C[CH3]3)—CH2—CH2—. These compounds are novel.
The novel compounds can be obtained by different routes. Advantageously, they are obtained by reacting dichlorotriazolopyrimidines of the formula II′ in which L is methyl, fluorine or chlorine with amines of the formula II′ in which D is as defined for formula I, under conditions known in a general manner from WO 98/46608.
The reaction of II′ with amines-III′ is advantageously carried out at from 0° C. to 70° C., preferably from 10° C. to 35° C., preferably in the presence of an inert solvent, such as an ether, for example dioxane, diethyl ether or, in particular, tetrahydrofuran, a halogenated hydrocarbon, such as dichloromethane or an aromatic hydrocarbon, such as, for example, toluene.
The use of a base, such as a tertiary amine, for example triethylamine or an inorganic base, such as potassium carbonate, is preferred; it is also possible for excess amine of the formula III to serve as base.
Amines of the formula III′ are commercially available.
The active compounds of groups A) to R) mentioned above as component 2, their preparation and their action against harmful fungi are generally known (cf.: http://www.hclrss.demon.co.uk/index.html):
Bordeaux mixture, the mixture of calcium hydroxide and copper(II) sulfate;
copper acetate; copper oxychloride; basic copper sulfate;
The mixtures of the compounds I and the active compounds from groups A) to R) or the simultaneous, that is joint or separate, use of the compounds I and the active compounds from groups A) to R) are distinguished by being highly active against a wide range of phytopathogenic fungi, in particular from the classes of the Ascomycetes, Deuteromycetes, Oomycetes and Basidiomycetes. Some of them act systemically and can be used in crop protection as foliar fungicides, as fungicides for seed dressing and as soil-acting fungicides.
They are particularly important for controlling a multitude of fungi on various cultivated plants, such as bananas, cotton, vegetable species (for example cucumbers, beans and cucurbits), barley, grass, oats, coffee, potatoes, corn, fruit species, rice, rye, soya, tomatoes, grapevines, wheat, ornamental plants, sugar cane and on a large number of seeds.
They are particularly suitable for the control of the following phytopathogenic fungi: Blumeria graminis (powdery mildew) on cereals, Erysiphe cichoracearum and Sphaerotheca fuliginea on cucurbits, Podosphaera leucotricha on apples, Uncinula necator on grapevines, Puccinia species on cereals, Rhizoctonia species on cotton, rice and lawns, Ustilago species on cereals and sugar cane, Venturia inaequalis on apples, Bipolaris and Drechslera species on cereals, rice and lawns, Septoria species on wheat, Botrytis cinerea on strawberries, vegetables, ornamental plants and grapevines, Mycosphaerella species on bananas, peanuts and cereals, Pseudocercosporella herpotrichoides on wheat and barley, Pyricularia oryzae on rice, Phakopsora species on soybean, Phytophthora infestans on potatoes and tomatoes, Pseudoperonospora species on cucurbits and hops, Plasmopara viticola on grapevines, Alternaria species on fruit and vegetables and also Fusarium and Verticillium species.
They can also be used in the protection of materials (e.g. the protection of wood), for example against Paecilomyces variotii.
The compound I and the active compounds from groups A) to R) can be applied simultaneously, that is jointly or separately, or in succession, the sequence, in the case of separate application, generally not having any effect on the result of the control measures.
In the definitions of the symbols given in the formulae above, collective terms were used which are generally representative of the following substituents:
halogen: fluorine, chlorine, bromine and iodine;
alkyl: saturated straight-chain or branched hydrocarbon radicals having 1 to 4, 6, 8 or 10 carbon atoms, for example C1-C6-alkyl, such as methyl, ethyl, propyl, 1-methylethyl, butyl, 1-methylpropyl, 2-methylpropyl, 1,1-dimethylethyl, pentyl, 1-methylbutyl, 2-me-thylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, 1-ethylpropyl, 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-dime-thylbutyl, 3,3-dimethylbutyl, 1-ethylbutyl, 2-ethylbutyl, 1,1,2-trimethylpropyl, 1,2,2-tri-methylpropyl, 1-ethyl-1-methylpropyl and 1-ethyl-2-methylpropyl;
haloalkyl: straight-chain or branched alkyl groups having 1 to 2, 4 or 6 carbon atoms (as mentioned above), where some or all of the hydrogen atoms in these groups may be replaced by halogen atoms as mentioned above: in particular C1-C2-haloalkyl, such as chloromethyl, bromomethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl, 1-chloroethyl, 1-bromoethyl, 1-fluoroethyl, 2-fluoroethyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, 2-chloro-2-fluoroethyl, 2-chloro-2,2-difluoroethyl, 2,2-dichloro-2-fluoroethyl, 2,2,2-trichloroethyl, pentafluoroethyl or 1,1,1-trifluoroprop-2-yl;
alkenyl: unsaturated straight-chain or branched hydrocarbon radicals having 2 to 4, 6, 8 or 10 carbon atoms and one or two double bonds in any position, for example 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-3-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-bu-tenyl, 2,2-dimethyl-3-butenyl, 2,3-dimethyl-1-butenyl, 2,3-dimethyl-2-butenyl, 2,3-dime-thyl-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-pro-penyl and 1-ethyl-2-methyl-2-propenyl;
haloalkenyl: unsaturated, straight-chain or branched hydrocarbon radicals having 2 to 10 carbon atoms and one or two double bonds in any position (as mentioned above), where some or all of the hydrogen atoms in these groups may be replaced by halogen atoms as mentioned above, in particular by fluorine, chlorine and bromine;
alkynyl: straight-chain or branched hydrocarbon groups having 2 to 4, 6, 8 or 10 carbon atoms and one or two triple bonds in any position, for example 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 and 1-ethyl-1-methyl-2-propynyl;
cycloalkyl: mono- or bicyclic, saturated hydrocarbon groups having 3 to 6 or 8 carbon ring members, for example C3-C8-cycloalkyl, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctyl;
five- to ten-membered saturated, partially unsaturated or aromatic heterocycle which contains one to four heteroatoms from the group consisting of O, N and S:
Formula IIA represents compounds in which Y is bromine (II-1) or chlorine (II-2).
Formula III represents in particular compounds in which the index n is 0, 1 or 2, preferably 0 or 1.
If n is 1, the group R33 is preferably located in the 5- or 6-position. These compounds are particularly suitable for use in the mixtures according to the invention.
In addition, preference is also given to compounds III in which R31 is hydrogen, methyl, ethyl, n- or isopropyl, fluorine, chlorine, bromine, iodine, methylthio, ethylthio, trifluoromethyl, pentafluoroethyl, cyano, phenyl or formyl.
Preference is likewise given to compounds III in which R32 is hydrogen, fluorine, chlorine, bromine, iodine, methyl, trifluoromethyl, methoxycarbonyl, ethoxycarbonyl, isopropoxycarbonyl or n-butoxycarbonyl.
Preference is furthermore given to compounds III in which R33 is fluorine, chlorine, bromine, iodine, cyano, nitro, methyl, ethyl, methoxy, trifluoromethyl, in particular fluorine, chlorine, bromine, cyano, methyl, trifluoromethyl or methoxy.
In particular with a view to their use in the mixtures according to the invention, preference is given to the compounds III compiled in the tables below.
Compounds of the formula III in which n is zero and R34 is hydrogen and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is zero and R34 is fluorine and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is zero and R34 is chlorine and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is zero and R34 is methyl and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-fluoro and R34 is hydrogen and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-fluoro and R34 is hydrogen and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-fluoro and R34 is hydrogen and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-fluoro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-chloro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which-n is 1, R33 is 5-chloro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-chloro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula II in which n is 1, R33 is 7-chloro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-bromo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-bromo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-bromo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-bromo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-iodo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-iodo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-iodo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-iodo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-methyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-methyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-methyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-methyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-ethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-ethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-ethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-ethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-methoxy and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-methoxy and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-methoxy and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-methoxy and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-nitro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-nitro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-nitro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-nitro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-cyano and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-cyano and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-cyano and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-cyano and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-trifluoromethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-trifluoromethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 6-trifluoromethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-trifluoromethyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 4-methoxycarbonyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 5-methoxycarbonyl and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table I
Compounds of the formula III in which n is 1, R33 is 6-methoxycarbonyl and R34 is hydrogen, and the combination of R1 and R2 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 1, R33 is 7-methoxycarbonyl and R34 is hydrogen, and the combination of R1 and R2 for one compound corresponds in each case to one row of Table III
Compounds of the formula IIII in which n is 2, R33 is 5,6-difluoro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dichloro and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dibromo and R34 is hydrogen, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-difluoro and R34 is fluorine, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dichloro and R34 is fluorine, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dibromo and R34 is fluorine, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-difluoro and R34 is chlorine, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dichloro and R34 is chlorine, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dibromo and R34 is chlorine, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-difluoro and R34 is methyl, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dichloro and R34 is methyl, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Compounds of the formula III in which n is 2, R33 is 5,6-dibromo and R34 is methyl, and the combination of R31 and R32 for one compound corresponds in each case to one row of Table III
Particular preference is given to the combinations of a compound I with one of the compounds III-135, III-161 and III-187 of Table 3, III-27 of Table 4, III-62 of Table 7 and III-22 of Table 55.
In another embodiment of the invention, mixtures of a compound I with at least one compound of the formula IV are present.
In formula IV, the following meanings of the substituents are preferred, alone or in combination:
Ar is preferably phenyl or a five-membered aromatic heterocycle, in particular a five-membered heteroaryl radical which is unsubstituted or substituted by one or two groups R41.
In addition, Ar preferably denotes the following groups: phenyl, pyridine, pyrazine, furan, thiophene, pyrazole and thiazole. Particularly preferred groups Ar are: 3-pyridinyl, pyrazinyl, 3-furyl, 3-thiophenyl, 4-pyrazolyl, 5-thiazolyl.
With particular preference, a group R41 is located in the ortho-position to the amide grouping.
Preferred groups R41 are halogen, in particular chlorine, alkyl, in particular methyl, and halomethyl, in particular fluoromethyl, difluoromethyl or trifluoromethyl.
Preferred groups R are alkyl groups, in particular branched C3-C8-alkyl groups, in particular 4-methylpent-2-yl.
For the intended use in a mixture with the compound I, the following compounds of the formula IV are particularly suitable:
If two groups R41 are present in one formula, these groups can be identical or different.
Particularly preferred are compounds IV.A, in particular compounds of the formulae IV.A.1 and IV.B.1 in which the radicals R41 can be identical or different and are methyl and halomethyl and R is alkyl, such as branched C3-C8-alkyl, in particular 4-methyl-pent-2-yl:
Especially preferred are compounds IV.A.11 (common name: penthiopyrad) and IV.B.11 which are present in the form of their R and S isomers:
In a further embodiment of the invention, mixtures of a compound I with at least one oxime ether derivative of the formula V are present.
Among the compounds of the formula V, preference is given to those in which X is a difluoromethoxy group. In addition, particular preference is given to compounds of the formula V in which the index n is zero.
Particularly preferred compounds V are in particular the compounds listed in Table V below:
Especially preferred is the compound V-2.
In a further embodiment of the invention, mixtures of a compound I with at least one compound of the formula VI are present.
With a view to the intended use of the compounds VI, particular preference is given to the following meanings of the substituents, in each case alone or in combination:
R61 is hydrogen;
R62 is C1-C6-alkyl; such as methyl and ethyl, in particular methyl,
R63 is C1-C6-alkyl, such as methyl and ethyl, in particular ethyl;
R64 is C1-C6-alkyl, in particular methyl;
R65 is C1-C6-alkyl, in particular methyl;
m is 1, where R65 is located in the para-position to R4;
A is oxygen (—O—);
R66 is phenyl which is preferably unsubstituted or substituted by one to three groups Rf, in particular by one or two groups Rf;
Rf is halogen, in particular fluorine or chlorine, alkyl, in particular methyl, ethyl, n- and isopropyl and tert-butyl, and haloalkyl, in particular trifluoromethyl.
The groups Rf are preferably located in the 3- or 3,4-position.
Suitable for the intended use in mixtures with the compound I are in particular the compounds of the formula VI.A listed in Table VI below:
In another embodiment of the invention, mixtures of a compound I with at least one compound of the formula VII are present.
Preference is given to compounds of the formula VII in which R71 is n-propyl or n-butyl, in particular n-propyl.
In addition, particular preference is given to compounds of the formula VII in which R73 is iodine or bromine, in particular iodine.
The formula VII represents in particular compounds of the formulae VII.1, VII.2 and VII.3:
in which the variables are as defined for formula VIII.
The compound of the formula VII.1 in which R71 is n-propyl, R72 is n-propoxy and R73 is iodine is also known under the common name proquinazid (compound VII. 1-1). Mixtures of a compound of the formula I and proquinazid are a preferred embodiment of the invention.
In addition, mixtures comprising a compound of the formula I and a compound of the formula VII.2 are also a preferred embodiment of the invention.
Especially preferred are mixtures of a compound I and one of the following compounds of the formula VII.2:
A further preferred embodiment of the invention relates to mixtures of a compound I and one of the compounds of the formula VII.3 below:
Preferred mixing partners for the compounds I are active compounds from groups A) to R) selected from one of the following groups:
Owing to the basic character of their nitrogen atoms or carboxylate groups, the compounds I and the active compounds from groups A) to R) are capable of forming salts or adducts with inorganic or organic acids or with metal ions.
Examples of inorganic acids are hydrohalic acids, such as hydrogen fluoride, hydrogen chloride, hydrogen bromide and hydrogen iodide, sulfuric acid, phosphoric acid and nitric acid.
Suitable organic acids are, for example, formic acid, carbonic acid, and alkanoic acids, such as acetic acid, trifluoroacetic acid, trichloroacetic acid and propionic acid, and also glycolic acid, lactic acid, succinic acid, citric acid, benzoic acid, cinnamic acid, oxalic acid, p-toluenesulfonic acid, salicylic acid, p-aminosalicylic acid, 2-phenoxybenzoic acid and 2-acetoxybenzoic acid.
Suitable metal ions are in particular the ions of the elements of transition groups one to eight, in particular chromium, manganese, iron, cobalt, nickel, copper, zinc, of the first main group, in particular lithium, sodium and potassium, and of the second main group, in particular calcium and magnesium, and of the third and fourth main groups, in particular aluminum, tin and lead. If appropriate, the metal ions can be present in the various valencies that they can assume.
When preparing the mixtures, it is preferred to employ the pure active compounds I and II, to which further active compounds against harmful fungi or against other pests, such as insects, arachnids or nematodes, or else herbicidal or growth-regulating active compounds or fertilizers, can be added according to need.
Suitable “further active compounds” in the above sense are in particular fungicides from groups A) to R) defined at the outset, in particular the preferred representatives mentioned above.
In addition to a compound of the formula I and an active compound from groups A) to R), the mixtures according to the invention may comprise, as active components, further active components from compounds of the formula I and active compounds from groups A) to R).
One embodiment of the mixtures comprises, in addition to a compound of the formula I and an active compound from groups A) to R), as active components, one or two, in particular one active compound from the groups A) to R).
The compound I and the active compound from groups A) to R) are usually applied in a weight ratio of from 100:1 to 1:100, preferably from 20:1 to 1:20, in particular from 10:1 to 1:10. In the case of mixtures of a compound I and diflufenzopyr, mixing ratios of from 1000:1 to 1:1 are also possible.
The further active components are, if desired, added in a ratio of from 20:1 to 1:20 to the compound I.
Depending on the type of compound and the desired effect, the application rates of the mixtures according to the invention are from 5 g/ha to 2000 g/ha, preferably from 50 to 900 g/ha, in particular from 50 to 750 g/ha.
Correspondingly, the application rates for the compound I are generally from 1 to 1000 g/ha, preferably from 10 to 900 g/ha, in particular from 20 to 750 g/ha.
Correspondingly, the application rates for the active compound from groups A) to R) are generally from 1 to 2000 g/ha, preferably from 10 to 900 g/ha, in particular from 40 to 750 g/ha. The application rates for diflufenzopyr are usually from 0.01 to 50 g/ha, preferably from 0.1 to 10 g/ha.
In the treatment of seed, application rates of mixture are generally from 1 to 1000 g/100 kg of seed, preferably from 1 to 750 g/100 kg, in particular from 5 to 500 g/100 kg.
The method for controlling harmful fungi is carried out by the separate or joint application of the compound I and the active.compound from groups A) to R) or of the mixtures of the compound I and the active compound from groups A) to R) by spraying or dusting the seeds, the plants or the soil before or after sowing of the plants or before or after emergence of the plants.
The mixtures according to the invention, or the active components, can be converted into the customary formulations, for example solutions, emulsions, suspensions, dusts, powders, pastes and granules. The use form depends on the particular intended purpose; in each case, it should ensure a fine and even distribution of the compound according to the invention.
The formulations are prepared in a known manner, for example by extending the active compound with solvents and/or carriers, if desired using emulsifiers and dispersants. Solvents/auxiliaries suitable for this purpose are essentially:
Suitable for use as surfactants are alkali metal, alkaline earth metal and ammonium salts of lignosulfonic acid, naphthalenesulfonic acid, phenolsulfonic acid, dibutylnaphthalenesulfonic acid, alkylarylsulfonates, alkyl sulfates, alkylsulfonates, fatty alcohol sulfates, fatty acids and sulfated fatty alcohol glycol ethers, furthermore condensates of sulfonated naphthalene and naphthalene derivatives with formaldehyde, condensates of naphthalene or of naphthalenesulfonic acid with phenol and formaldehyde, polyoxyethylene octylphenyl ether, ethoxylated isooctylphenol, octylphenol, nonylphenol, alkylphenyl polyglycol ethers, tributylphenyl polyglycol ether, tristearylphenyl polyglycol ether, alkylaryl polyether alcohols, alcohol and fatty alcohol ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene alkyl ethers, ethoxylated polyoxypropylene, lauryl alcohol polyglycol ether acetal, sorbitol esters, lignosulfite waste liquors and methylcellulose.
Substances which are suitable for the preparation of directly sprayable solutions, emulsions, pastes or oil dispersions are mineral oil fractions of medium to high boiling point, such as kerosene or diesel oil, furthermore coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, for example toluene, xylene, paraffin, tetrahydronaphthalene, alkylated naphthalenes or their derivatives, methanol, ethanol, propanol, butanol, cyclohexanol, cyclohexanone, isophorone, highly polar solvents, for example dimethyl sulfoxide, N-methylpyrrolidone and water.
Powders, materials for spreading and dustable products can be prepared by mixing or concomitantly grinding the active substances with a solid carrier.
Granules, for example coated granules, impregnated granules and homogeneous granules, can be prepared by binding the active compounds to solid carriers. Examples of solid carriers are mineral earths such as silica gels, silicates, talc, kaolin, attaclay, limestone, lime, chalk, bole, loess, clay, dolomite, diatomaceous earth, calcium sulfate, magnesium sulfate, magnesium oxide, ground synthetic materials, fertilizers, such as, for example, ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas, and products of vegetable origin, such as cereal meal, tree bark meal, wood meal and nutshell meal, cellulose powders and other solid carriers.
In general, the formulations comprise from 0.01 to 95% by weight, preferably from 0.1 to 90% by weight, of the active compounds. The active compounds are employed in a purity of from 90% to 100%, preferably 95% to 100% (according to NMR spectrum).
The following are examples of formulations of the invention:
1. Products for Dilution with Water
10 parts by weight of the active compounds are dissolved with 90 parts by weight of water or a water-soluble solvent. As an alternative, wetters or other auxiliaries are added. The active compound dissolves upon dilution with water. In this way, a formulation having an active compound content of 10% by weight is obtained.
20 parts by weight of the active compounds 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
15 parts by weight of the active compounds are dissolved in 75 parts by weight of xylene 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.
25 parts by weight of the active compounds are dissolved in 35 parts by weight of xylene 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 emulsifying machine (for example Ultraturrax) and made into a homogeneous emulsion. Dilution with water gives an emulsion. The formulation has an active compound content of 25% by weight.
In an agitated ball mill, 20 parts by weight of the active compounds 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.
50 parts by weight of the active compounds are ground finely with addition of 50 parts by weight of dispersants and wetters and prepared as 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.
75 parts by weight of the active compounds 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.
5 parts by weight of the active compounds are ground finely and mixed intimately with 95 parts by weight of finely divided kaolin. This gives a dustable product having an active compound content of 5% by weight.
0.5 part by weight of the active compounds is ground finely and associated with 99.5 parts by weight of carriers. Current methods are extrusion, spray-drying or the fluidized bed. This gives granules to be applied undiluted having an active compound content of 0.5% by weight.
10 parts by weight of the active compounds are dissolved in 90 parts by weight of an organic solvent, for example xylene. This gives a product to be applied undiluted having an active compound content of 10% by weight.
The active compounds can be used as such, in the form of their formulations or the use forms prepared therefrom, for example in the form of directly sprayable solutions, powders, suspensions or dispersions, emulsions, oil dispersions, pastes, dustable products, materials for spreading, or granules, by means of spraying, atomizing, dusting, spreading or pouring. The use forms depend entirely on the intended purposes; they are intended to ensure in each case the finest possible distribution of the active compounds according to the invention.
Aqueous use forms can be prepared from emulsion concentrates, pastes or wettable powders (sprayable powders, oil dispersions) by adding water. To prepare emulsions, pastes or oil dispersions, the substances, as such or dissolved in an oil or solvent, can be homogenized in water by means of a wetter, tackifier, dispersant or emulsifier. However, it is also possible to prepare concentrates composed of active substance, wetter, tackifier, dispersant or emulsifier and, if appropriate, solvent or oil, and such concentrates are suitable for dilution with water.
The active compound concentrations in the ready-to-use preparations can be varied within relatively wide ranges. In general, they are from 0.0001 to 10%, preferably from 0.01 to 1%.
The active compounds may also be used successfully in the ultra-low-volume process (ULV), it being possible to apply formulations comprising over 95% by weight of active compound, or even to apply the active compound without additives.
Oils of various types, wetters, adjuvants, herbicides, fungicides, other pesticides, or bactericides may be added to the active compounds even, if appropriate, not until immediately prior to use (tank mix). These agents are typically admixed with the compositions according to the invention in a weight ratio of from 1:10 to 10:1.
The compounds I and II or the mixtures or the corresponding formulations are applied by treating the harmful fungi, the plants, seeds, soils, areas, materials or spaces to be kept free from them with a fungicidally effective amount of the mixture or, in the case of separate application, of the compounds I and II. Application can be carried out before or after infection by the harmful fungi.
The novel compounds of the formula I can be prepared analogously to the process known from U.S. Pat. No. 5,593,996. With appropriate modification of the starting materials, the procedure given in the synthesis example below was used to obtain further compounds I. The compounds obtained in this manner are listed in the table below, together with physical data.
A solution of 1 g (3.6 mmol) of 5,7-dichloro-6-(2-methylphenyl)-1,2,4-tri-azolo[1,5a]pyrimidine (prepared analogously to WO 1994/20501), 0.36 g (3.62 mmol) of 4-methylpiperidine and 0.37 g (3.62 mmol) of triethylamine in 10 ml of methylene chloride was stirred at about 20-25° C. for about 1.5 hours. The reaction mixture was then freed from the solvent and the residue was taken up in acetonitrile. Using preparative MPLC on silica gel RP-18, this yielded 1.1 g of the title compound as a colorless crystalline material of m.p. 170-180° C.
1H-NMR (CDCl3, δ in ppm): 8.4 (s, 1H); 7.3 (m, 3H); 7.1 (d, 1H); 3.85 (m, 1H); 3.45 (m, 1H); 2.7 (m, 1H); 2.6 (m, 1H); 2.2 (s, 3H); 1.55 (m, 2H); 1.45 (m, 1H); 1.25 (m, 2H); 0.9 (d, 3H)
The fungicidal effect of the compound and the mixtures was demonstrated by the following tests:
Leaves of potted apple seedlings of the cultivar “Common” were sprayed to run off point with an aqueous active compound preparation which had been prepared using a stock solution of 5% active compound, 94% acetonitrile and 1% emulsifier (Tween 20). After the spray coating had dried on (3-5 h), the leaves were inoculated with an aqueous spore suspension of Venturia inequalis. The test plants were then placed in climatized chambers at 22-24° C. and 95-99% relative atmospheric humidity for 2 days and then cultivated in the greenhouse at 21-23° C. and about 95% relative atmospheric humidity for a further 2 weeks. The extent of the development of the infection on the leaves was then determined visually.
In this test, the plants which had been treated with 200 ppm of the active compound I-1, I-2 or I-10 showed an infection of at most 15%, whereas the untreated plants were 90% infected.
Leaves of tomato plants of the cultivar “Pixie II” which had been cultivated in pots up to the 4-leaf stage were sprayed to run off point with an aqueous active compound preparation which had been prepared from a stock solution of 5% active compound, 94% acetone and 1% emulsifier (Tween 20). After the spray coating had dried on (3-5 h), the leaves were inoculated with an aqueous spore suspension of Alternaria solani (density 15×103 spores per ml). The test plants were then placed in climatized chambers at 22-24° C. and 96-99% relative atmospheric humidity for 36 hours and then cultivated in the greenhouse at 21-23° C. and about 95% relative atmospheric humidity for a further 2 to 3 days. The extent of the development of the infection on the leaves was then determined visually.
In this test, plants which had been treated with 200 ppm of the active compounds I-1, I-2, I-5, I-6, I-7, I-9 or I-11 showed an infection of at most 15%, whereas the untreated plants were 90% infected.
For use examples 3 to 9, the active compounds, separately or jointly, were prepared as a stock solution comprising 0.25% by weight of active compound in acetone or DMSO. 1% by weight of the emulsifier Uniperol® EL (wetter having emulsifying and dispersant action based on ethoxylated alkylphenols) was added to this solution, and the mixture was diluted with water to the desired concentration.
The active compounds fosetyl-AI, epoxiconazole, triticonazole and pyraclostrobin were applied in their commercial formulation.
Leaves of potted plants of the cultivar “Goldene Königin” were sprayed to run off point with an aqueous suspension having the active compound concentration stated below. The next day, the leaves were infected with an aqueous spore suspension of Alternaria solani in a 2% strength biomalt solution having a density of 0.17×106 spores/ml. The plants were then placed in a water vapor-saturated chamber at temperatures between 20 and 22° C. After 5 days, the disease on the untreated but infected control plants had developed to such an extent that the infection could be determined visually in %.
In this test, the plants which had been treated with 63 ppm of the active compound I-12 showed no infection, whereas the untreated plants were 90% infected.
Leaves of potted barley seedlings were sprayed to run off with an aqueous suspension having the active compound concentration stated below. 24 hours after the spray coating had dried on, the test plants were inoculated with an aqueous spore suspension of Pyrenophora [syn. Drechslera ] teres, the net blotch pathogen. The test plants were then placed in a greenhouse at temperatures between 20 and 24° C. and 95 to 100% relative atmospheric humidity. After 6 days, the extent of the development of the disease was determined visually in % infection of the entire leaf area.
In this test, the plants which had been treated with 63 ppm of the active compound I-12 showed an infection of 7%, whereas the untreated plants were 90% infected.
A further test according to use example 3 was evaluated as follows:
The visually determined percentages of infected leaf areas were converted into efficacies in % of the untreated control:
The efficacy (E) is calculated as follows using Abbot's formula:
E=(1−α/β)·100
α corresponds to the fungicidal infection of the treated plants in % and
β corresponds to the fungicidal infection of the untreated (control) plants in %
An efficacy of 0 means that the infection level of the treated plants corresponds to that of the untreated control plants; an efficacy of 100 means that the treated plants were not infected.
The expected efficacies of mixtures of active compounds were determined using Colby's formula (Colby, S.R. “Calculating synergistic and antagonistic responses of herbicide combinations”, Weeds, 15, 20-22, 1967) and compared with the observed efficacies.
Colby's formula:
E=x+y−x·y/100
The following results were obtained:
Leaves of potted wheat seedlings of the cultivar “Kanzler” were sprayed to run off point with an aqueous suspension having the active compound concentration stated below. The next day, the treated plants were inoculated with a spore suspension of brown rust of wheat (Puccinia recondite). The plants were then placed in a chamber with high atmospheric humidity (90 to 95%) at 20 to 22° C. for 24 hours. During this time, the spores germinated and the germ tubes penetrated into the leaf tissue. The next day, the test plants were returned to the greenhouse and cultivated at temperatures between 20 and 22° C. and 65 to 70% relative atmospheric humidity for a further 7 days. The extent of the rust fungus development on the leaves was then determined visually.
The following results were obtained:
In a further test according to use example 4, the following results were obtained:
The leaves of potted wheat seedlings were sprayed to run off point with an aqueous suspension having the active compound concentration stated below. The suspension or emulsion had been prepared as described above. 24 hours after the spray coating had dried on, the plants were dusted with spores of mildew of wheat (Erysiphe [syn. Blumeria] graminis) form a specialis. tritici). The test plants were then placed in the greenhouse at temperatures between 20 and 24° C. and 60 to 90% relative atmospheric humidity. After 7 days, the extent of the mildew development was determined visually in % infection of the entire leaf area.
Number | Date | Country | Kind |
---|---|---|---|
10 2004 037 784.7 | Aug 2004 | DE | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/EP05/08192 | 7/28/2005 | WO | 00 | 2/2/2007 |