The present invention relates to the use of benzylpyrimidine derivatives as agricultural and horticultural fungicides, to novel benzylpyrimidine derivatives and to a process for their preparation.
It has been already known that some kinds of pyrimidine derivatives show an action as fungicides (cf. for example, German Patent Specification No. 4029649, PCT International Laid-open Pamphlet WO 02/74753, PCT International Laid-open Pamphlet WO 03/43993, European Patent Specification No. 4034762, European Patent Specification No. 407899, Japanese Laid-open Patent Publication No. 283246/1996).
It has been also known that some kinds of pyrimidine derivatives have various physiological activities (cf. for example, PCT International Laid-open Pamphlet WO 92/18498: Enhancement of anti-tumor activities, PCT International Laid-open Pamphlet WO 99/19305: Action to central nervous system, PCT International Laid-open Pamphlet WO 00/61562: Action to nervous system, Swiss Patent Specification No. 479591: Pharmacological action).
Further, in the field of organic chemistry, various pyrimidine derivatives have been synthesized and reported (cf. for example, Journal of Organic Chemistry, Vol. 65, p. 9261-9264 (2000), Armyanskii Khimicheskii Zhurnal, Vol. 22, No. 5, p. 401-405 (1969), Armyanskii Khimicheskii Zhurnal, Vol. 23, No. 5, p. 462-468 (1970), Armyanskii Khimicheskii Zhurnal, Vol. 24, No. 1, p. 45-50 (1971), Armyanskii Khimicheskii Zhurnal, Vol. 24, No. 8, p. 721-726 (1971),).
It has now been found that a group of benzylpyrimidine derivatives of the following formula (I) have fungicidal activities;
wherein
R1 and R2 form, together with the nitrogen atom to which they are bonded, a 3 to 10-membered heterocyclic group that may be optionally substituted, and may contain further one to three hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and S(O)n, besides the nitrogen atom to which R1 and R2 are bonded,
n represents 0, 1 or 2,
R3 represents hydrogen, halogen, cyano, hydroxy, amino, azido, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, alkenyloxy, haloalkenyloxy, alkylthio, alkenylthio, haloalkenylthio, alkylsulfinyl, alkylsulfonyl, phenoxy that may be optionally substituted, benzyloxy that may be optionally substituted, phenyl that may be optionally substituted, phenylalkyl that may be optionally substituted, phenoxyalkyl that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted with a group selected from the group consisting of halogen, alkyl and haloalkyl, or
R3 represents a group selected from the group consisting of the following groups A-H and J-M
in which
R7 represents hydrogen atom, alkyl or haloalkyl, and
R8 represents alkyl, phenyl, alkoxy or cyano, or
R7 and R8 form, together with the carbon atom to which they are bonded, cycloalkylidene,
R9 represents alkyl, haloalkenyl or benzyl,
R10 represents hydrogen atom or alkyl,
R11 represents alkyl, alkoxyalkyl, dialkylaminoalkyl, phenyl, benzyl or cyano,
R12 represents alkyl or phenyl,
R13 represents alkyl or benzyl,
R14 represents hydrogen atom or alkyl,
R15 represents hydrogen atom, haloalkyl or phenyl,
R16 represents hydrogen atom or alkyl,
R17 represents hydrogen atom, alkyl or haloalkyl,
R18 represents alkyl or phenyl,
R19 represents hydrogen atom or alkyl,
R20 represents alkyl,
R21 represents alkyl,
R22 represents alkyl, alkenyl, haloalkenyl, alkoxyalkyl, phenoxyalkyl or alkoxycarbonylalkyl,
R23 represents alkyl,
R24 represents hydrogen atom or alkyl,
R25 represents alkyl or phenyl,
R24 and R25 form, together with the nitrogen atom to which they are bonded, a 5 to 8-membered saturated-monoheterocyclic group that may be optionally substituted, and may contain further one or two hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and S(O)n, besides the nitrogen atom to which R24 and R25 are bonded,
R4 represents hydrogen atom, halogen, cyano, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl or group
R5 and R6 each independently represents hydrogen atom, halogen, alkyl, haloalkyl, or phenyl that may be optionally substituted, and
Q represents aryl that may be optionally substituted or a 5 or 6-membered heterocyclic group that contains one hetero atom selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted.
The benzylpyrimidine derivatives of the following formula (IA) being included in the aforementioned formula (I), according to the present invention are novel compounds that have not been described in the existing publications.
The formula
wherein
R1A and R2A form, together with the nitrogen atom to which they are bonded, a
3 to 10-membered heterocyclic group that may be optionally substituted, and may contain further one to three hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and S(O)m, besides the nitrogen atom to which R1A and R2A are bonded,
m represents 0, 1 or 2,
R3A represents hydrogen, halogen, cyano, hydroxy, amino, azido, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, alkenyloxy, haloalkenyloxy, alkylthio, alkenylthio, haloalkenylthio, alkylsulfinyl, alkylsulfonyl, phenoxy that may be optionally substituted, benzyloxy that may be optionally substituted, phenyl that may be optionally substituted, phenylalkyl that may be optionally substituted, phenoxyalkyl that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted with a group selected from the group consisting of halogen, alkyl and haloalkyl, or
R3A represents a group selected from the group consisting of the following groups A-H and J-M
in which
R7A represents hydrogen atom, alkyl or haloalkyl, and
R8A represents alkyl, phenyl, alkoxy or cyano, or
R7A and R8A form, together with the carbon atom to which they are bonded, cycloalkylidene,
R9A represents alkyl, haloalkenyl or benzyl,
R10A represents hydrogen atom or alkyl,
R11A represents alkyl, alkoxyalkyl, dialkylaminoalkyl, phenyl, benzyl or cyano,
R12A represents alkyl or phenyl,
R13A represents alkyl or benzyl,
R14A represents hydrogen atom or alkyl,
R15A represents hydrogen atom, haloalkyl or phenyl,
R16A represents hydrogen atom or alkyl,
R17A represents hydrogen atom, alkyl or haloalkyl,
R18A represents alkyl or phenyl,
R19A represents hydrogen atom or alkyl,
R20A represents alkyl,
R21A represents alkyl,
R22A represents alkyl, alkenyl, haloalkenyl, alkoxyalkyl, phenoxyalkyl or alkoxycarbonylalkyl,
R23A represents alkyl,
R24A represents hydrogen atom or alkyl,
R25A represents alkyl or phenyl,
R24A and R25A form, together with the nitrogen atom to which they are bonded, a 5 to 8-membered saturated-monoheterocyclic group that may be optionally substituted, and may contain further one or two hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and S(O)n, besides the nitrogen atom to which R24A and R25A are bonded,
R4A represents hydrogen atom, halogen, cyano, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl or group
R5A and R6A each independently represents hydrogen atom, halogen, alkyl, haloalkyl, or phenyl that may be optionally substituted, and
QA represents aryl that may be optionally substituted or a 5 or 6-membered heterocyclic group that contains one hetero atom selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted,
provided that, the following cases (T-1)-(T-6) are excluded:
(T-1) the case in which group
represents 1-indolyl, 1-pyrrolyl, 1-imidazolyl, 3-oxopiperidino or 4-oxopiperidino, R3A represents hydrogen atom, R4A represents hydrogen atom, and QA represents 1-naphthyl or phenyl group that may be optionally substituted by one or two groups selected from the group consisting of chloro, bromo, methyl, ethyl and trifluoromethyl,
(T-2) the case in which group
represents 3-oxopiperidino, 4-oxopiperidino, 4-hydroxypiperidino, 4-carbamoylpiperidino, 4-methylpiperazino, 4-ethylpiperazino, 4-(2-hydroxyethyl)piperazino or morpholino, R3A represents amino, R4A represents hydrogen atom, and QA represents 3-pyridyl or phenyl group that may be optionally substituted by one to three groups selected from the group consisting of fluoro, chloro, bromo, methyl, ethyl, isopropyl, trifluoromethyl, hydroxy, methoxy and 4-chlorobenzyloxy,
(T-3) the case in which group
represents piperidino, 4-hydroxypiperidino, 4-methylpiperazino, morpholino, 6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl or 6,7-dimethoxy-1-(3,4-dimethoxybenzyl)-1,2,3,4-tetrahydroisoquinolin-2-yl, R3A represents chloro, dimethylamino, anilino, 2-(2-hydroxyethoxy)ethylamino, piperidino, 4-hydroxypiperidino, 4-carbamoylpiperidino, 4-methylpiperazino or morpholino,
R4A represents hydrogen atom, and QA represents phenyl group that may be optionally substituted by one or two groups selected from the group consisting of methyl and methoxy,
(T-4) the case in which group
represents 1-pyrrolidinyl, piperidino, morpholino or 1-pyrrolyl, R3A represents methyl or methoxymethyl, R4A represents chloro, and QA represents phenyl or 1-naphthyl,
(T-5) the case in which group
represents 1-azilidinyl, piperidino or morpholino, R3A represents methylthio, R4A represents chloro, and QA represents phenyl group substituted by methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy, iso-butoxy or allyloxy,
(T-6) the case in which group
represents 1-azilidinyl, R3A represents hydrogen atom or amino, R4A represents chloro, and QA represents phenyl group substituted by methoxy, ethoxy or allyloxy.
The compound of the formula (IA) can be obtained by a process in which
a) In case that R3A represents hydrogen, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, alkenyl, alkylthio, alkenylthio, haloalkenylthio, phenyl that may be optionally substituted, phenylalkyl that may be optionally substituted, phenoxyalkyl that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted by a group selected from the group consisting of halogen, alkyl and haloalkyl, and R4A represents hydrogen atom, halogen, alkyl, haloalkyl or alkenyl:
compounds of the formula (II)
wherein
Xa represents halogen, preferably chloro or bromo,
R3Aa represents hydrogen, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, alkenyl, alkylthio, alkenylthio, haloalkenylthio, phenyl that may be optionally substituted, phenylalkyl that may be optionally substituted, phenoxyalkyl that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted by a group selected from the group consisting of halogen, alkyl and haloalkyl, and
R4Aa represents hydrogen atom, halogen, alkyl, haloalkyl or alkenyl,
R5A, R6A and QA have the same definition as aforementioned, are reacted with compounds of the formula (III)
wherein
R1A and R2A have the same definition as aforementioned,
in the presence of innert solvents, and if appropriate, in the presence of an acid binder,
or
b) in case that R3A represents alkylsulfinyl or alkylsulfonyl and R4A represents hydrogen atom, halogen, cyano, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy or group
or
R3A represents hydrogen, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, alkenyl, phenyl that may be optionally substituted, phenylalkyl that may be optionally substituted, phenoxyalkyl that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted by a group selected from the group consisting of halogen, alkyl and haloalkyl, and R4A represents alkylsulfinyl or alkylsulfonyl:
compounds of the formula (IAb)
wherein
R3Ab represents alkylthio, and R4Ab represents hydrogen atom, halogen, cyano, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy or group
or
R3Ab represents hydrogen, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, alkenyl, phenyl that may be optionally substituted, phenylalkyl that may be optionally substituted, phenoxyalkyl that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted by a group selected from the group consisting of halogen, alkyl and haloalkyl, and R4Ab represents allylthio,
R1A, R2A, R5A, R6A and QA have the same definition as aforementioned,
are reacted with an oxidizing agent in the presence of innert solvents,
or,
c) in case that R3A represents cyano, hydroxy, azido, alkynyl, alkoxy, haloalkoxy, alkenyloxy, haloalkenyloxy, alkylthio, alkenylthio, haloalkenylthio, phenoxy that may be optionally substituted, benzyloxy that may be optionally substituted, or 5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom and may be optionally substituted by a group selected from the group consisting of halogen, alkyl and haloalkyl, or represents the aforementioned group A, group B, group C, group F, group G or group H, and
R4A represents hydrogen atom, halogen, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, cyano or group
The diazonium salts obtained in the above-mentioned first step is reacted according to Sandmeyer process or Gattermann process in the presence of copper halide, potassium halide or copper powder,
in the presence innert solvents, and if appropriate, in the presence of acid catalyst,
or
i) In case that R3A represents the aforementioned group E:
First Step:
compounds of the aforementioned formula (IAh) are reacted with dimethylformamide dimethylacetal in the presence of innert solvents,
Second Step:
compounds of the formula (VI), obtained in the above-mentioned first step,
wherein
R1A, R2A, R4A, R5A, R6A and QA have the same definition as aforementioned,
are reacted with compounds of the formula (VII)
wherein
R13A has the same definition as aforementioned,
in the presence of innert solvents, and if appropriate, in the presence of an acid binder, and if appropriate, in the presence of an acid catalyst,
or
j) In case that R3A represents the aforementioned group D:
compounds of the formula (IAh) are reacted with compounds of the formula (VIII)
wherein
R26A represents chloro or group
wherein
R12A has the same definition as aforementioned,
in the presence of innert solvents, and if appropriate, in the presence of an acid binder,
or
k) In case that R3A represents the aforementioned group K, and
R4A represents hydrogen atom, halogen, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, allylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl, or group
compounds of the formula (IAk)
wherein
R4A represents hydrogen atom, halogen, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl, or group
and
R1A, R2A, R5A, R6A and QA have the same definition as aforementioned,
are reacted with compounds of the formula (IX)
R20A—Mg—Xk (IX)
wherein
Xk represents halogen, preferably chloro, bromo or iodo,
R20A has the same definition as aforementioned,
in the presence of innert solvents,
or
1) In case that R3A represents the aforementioned group L or group M, and
R4A represents hydrogen atom, halogen, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, allylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl, or group
compounds of the formula (IAl)
wherein
R27A represents alkyl,
R4Al represents hydrogen atom, halogen, alkyl, haloalkyl, alkenyl, alkynyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl, or group
and
R1A, R2A, R5A, R6A and QA have the same definition as aforementioned,
are reacted with compounds of the formula (X)
H2N—R28A (X)
wherein
R28A represents group
—O—R22A
or group
wherein
R22A, R24A, and R25A have the same definition as aforementioned,
In the presence of innert solvents, and if appropriate, in the presence of acid
binder, and if appropriate, in the presence of acid catalyst,
or
m) In case that R3A represents the aforementioned group J, and
compounds of the formula (IAk) are reacted with compounds of the formula (XI)
H2NO—R19A (XI)
wherein
R19A has the same definition as aforementioned,
In the presence of innert solvents, and if appropriate, in the presence of acidbinder, and if appropriate, in the presence of acid catalyst.
Active component compounds of the formula (I) of the present invention show a strong plant disease controlling action, in particular against phytopathogenic fungi.
In the present specification,
“Halogen” represents fluoro, chloro, bromo or iodo, preferably represents fluoro, chloro or bromo.
“Alkyl” can be straight-chain or branched-chain and there can be mentioned, for example, C1-6alkyl, specifically methyl, ethyl, n- or iso-propyl, n-, iso-, sec- or tert-butyl, n- or neo-pentyl, n-hexyl etc.
“Cycloalkyl”: there can be mentioned, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, etc.
“Cycloalkylidene”: there can be mentioned, for example, cyclopentylidene, cyclohexylidene, cycloheptylidene, cyclooctylidene, etc.
“Alkenyl” can be straight-chain or branched-chain and there can be mentioned, for example, C2-7alkenyl, specifically vinyl, allyl, isopropenyl, 1-propenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-methyl-1-propenyl, 2-methyl-1-propenyl, 1-pentenyl, 2-pentenyl, 1-hexenyl, 2-hexenyl, 1-heptenyl, 2-heptenyl, etc.
“Alkynyl” can be straight-chain or branched-chain and there can be mentioned, for example, C2-7alkynyl, specifically ethynyl, 1-propynyl, 2-propynyl, 1-butynyl 2-butynyl, 3-butynyl, 1-pentynyl, 2-pentynyl, 1-hexynyl, 2-hexynyl, 1-heptynyl, 2-heptynyl, etc.
“Alkoxy” represents an alkyl-O-group, whose alkyl part has the above-mentioned meaning and can be, for example, C1-6alkoxy, and there can be specifically mentioned methoxy, ethoxy, n- or iso-propoxy, n-, iso-, sec- or tert-butoxy, n-pentyloxy, n-hexyloxy, etc.
“Alkenyloxy” represents an alkenyl-O-group, whose alkenyl part has the above-mentioned meaning and there can be mentioned, for example, allyloxy, 2-butenyloxy, 3-butenyloxy, 2-methyl-4-pentenyloxy, etc.
“Alkylthio” represents an alkyl-5-group, whose alkyl part has the above-mentioned meaning and can be, for example, C1-6alkylthio, and there can be specifically mentioned methylthio, ethylthio, n- or iso-propylthio, n-, iso-, sec- or tert-butylthio, n-pentylthio, n-hexylthio, etc.
“Alkenylthio” represents an alkenyl-5-group, whose alkenyl part has the above-mentioned meaning and there can be mentioned, for example, allylthio, 2-butenylthio, 3-butenylthio, etc.
“Alkylsulfinyl” represents an alkyl-S(O)-group, whose alkyl part has the above-mentioned meaning and can be, for example, C1-6alkylsulfinyl, and there can be specifically mentioned, for example, methylsulfinyl, ethylsulfinyl, n- or iso-propylsulfinyl, n-, iso-, sec- or tert-butylsulfinyl, n-pentylsulfinyl, n-hexylsulfinyl, etc.
“Alkylsulfonyl” represents an alkyl-SO2-group, whose alkyl part has the above-mentioned meaning and can be, for example, C1-6alkylsulfonyl, and there can be specifically mentioned, for example, methylsulfonyl, ethylsulfonyl, n- or iso-propylsulfonyl, n-, iso-, sec- or tert-butylsulfonyl, n-pentylsulfonyl, n-hexylsulfonyl, etc.
“Alkylcarbonyl”: there can be mentioned, for example, methylcarbonyl (acetyl), ethylcarbonyl (propionyl), etc.
“Alkylcarbonylamino”: there can be mentioned, for example, methylcarbonylamino, ethylcarbonylamino, etc.
“Alkoxycarbonyl”: there can be mentioned, for example, methoxycarbonyl, ethoxycarbonyl, etc.
“Haloalkyl” represents a straight-chain or branched-chain alkyl, at least one of whose hydrogen is substituted by halogen and there can be mentioned, for example, C1-6alkyl substituted by one to six fluoro, chloro and/or bromo, and as specific examples there can be mentioned fluoromethyl, chloromethyl, dichloromethyl, bromomethyl, difluoromethyl, trifluoromethyl, chlorodifluoromethyl, dichloromethyl, trichloromethyl, 2,2,2-trifluoroethyl, 2-chloro-1,1,2-trifluoroethyl, 3-fluoropropyl, 3-chloropropyl, 2,2,3,3,3-pentafluoropropyl, 1,2,2,3,3,3-hexafluoropropyl, etc.
“Haloalkylene”: there can be mentioned, for example, difluoromethylene, dichloromethylene, etc.
Haloalkyl part in “haloalkoxy”, “haloalkylthio”, “haloalkylcarbonyl” and “haloalkylcarbonylamino” can be of the same definition as the aforementioned “haloalkyl” and specifically as “haloalkoxy” there can be mentioned, for example, difluoromethoxy, trifluoromethoxy, chlorodifluoromethoxy, dichloromethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2,2,2-trifluoroethoxy, 3-chloropropoxy, etc., as “haloalkylthio” there can be mentioned, for example, difluoromethylthio,
trifluoromethylthio, 2,2,2-trifluoroethylthio, 3-fluoropropylthio, etc., as “haloalkylcarbonyl” there can be mentioned, for example, trifluoromethylcarbonyl, trichloromethylcarbonyl, 1,1,2,2-tetrafluoroethylcarbonyl, perfluoroethylcarbonyl, perfluoroheptylcarbonyl, etc. and as “haloalkylcarbonylamino” there can be mentioned, for example, trifluoromethylcarbonylamino, etc.
“Haloalkenyl” represents a straight-chain or branched-chain alkenyl, at least one of whose hydrogen is substituted with halogen and there can be mentioned, for example, 2-chloro-2-propenyl, 3-chloro-2-propenyl, 3,3-dichloro-2-propenyl, 3-chloro-4,4,4-trifluoro-2-butenyl, etc.
Haloalkenyl part in “haloalkenyloxy” and “haloalkenylthio” can be of the same definition as the aforementioned “haloalkenyl” and specifically as “haloalkenyloxy” there can be mentioned, for example, 2-chloro-2-propenyloxy, 3-chloro-2-propenyloxy, 3,3-dichloro-2-propenyloxy, 3-chloro-4,4,4-trifluoro-2-butenyloxy, etc., and as “haloalkenylthio” there can be mentioned, for example, 2-chloro-2-propenylthio, 3-chloro-2-propenylthio, 3,3-dichloro-2-propenylthio, 3-chloro-4,4,4-trifluoro-2-butenylthio, etc.
“Phenylalkyl”: there can be mentioned, for example, benzyl, 1-phenylethyl, phenethyl, 1-phenylpropyl, 2-phenylpropyl, 3-phenylpropyl, etc.
“Phenoxyalkyl”: there can be mentioned, for example, phenoxymethyl, 1-phenoxyethyl, 2-phenoxyethyl, 1-phenoxypropyl, 2-phenoxypropyl, 3-phenoxypropyl, etc.
“Alkoxyalkyl”: there can be mentioned, for example, methoxymethyl, 2-methoxyethyl, 1-methoxyethyl, 3-methoxypropyl, ethoxymethyl, 2-ethoxyethyl, etc.
“Dialkylaminoalkyl”: there can be mentioned, for example, dimethylaminomethyl, 2-dimethylaminoethyl, 1-dimethylaminoethyl, 3-dimethylaminopropyl, diethylaminomethyl, 2-diethylaminoethyl, etc.
“Alkoxycarbonylalkyl”: there can be mentioned, for example, methoxycarbonylmethyl, ethoxycarbonylmethyl, (n- or iso-) propyloxycarbonylmethyl, (n-, iso-, sec.- or tert-)butyloxycarbonylmethyl, 2-methoxycarbonylethyl, 3-methoxycarbonylpropyl, etc.
“Hydroxyalkyl”: there can be mentioned, for example, hydroxymethyl, 2-hydroxyethyl, etc.
“Anilinoalkyl”: there can be mentioned, for example, anilinomethyl, 2-anilinoethyl, etc.
“Aryl”: there can be mentioned, for example, phenyl, 1-naphthyl, 2-naphthyl, etc.
The heterocyclic group in “R1 and R2 form, together with the nitrogen atom to which they are bonded, a 3 to 10-membered heterocyclic group that may contain further one to three hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and S(O)n besides the nitrogen atom to which R1 and R2 are bonded” and “5 to 10-membered heterocyclic group that contains one to four hetero atoms selected from the group consisting of nitrogen atom, oxygen atom and sulfur atom”, defined in the group
and
the heterocyclic group in “R24 and R25 form, together with the nitrogen atom to which they are bonded, a 5 to 8-membered, saturated, monocyclic, heterocyclic group that may contain further hetero one or two atoms selected from the group consisting of nitrogen atom, oxygen atom and S(O)n, besides the nitrogen atom to which R24 and R25 are bonded”, defined in the group
includes saturated heterocyclic group, unsaturated heterocyclic group and aromatic heterocyclic group.
Thus, as “saturated heterocyclic group” there can be mentioned monovalent group derived from, for example, aziridine, azetidine, pyrrolidine, piperidine, piperazine, morpholine, thiomorpholine, thiomorpholine-1,1-dioxide, perhydroazepine, perhydroazocine, perhydro-1,2-diazepine, perhydro-1,2,5-oxadiazepine, perhydroindole, perhydroquinoline, perhydroisoquinoline, etc.
“Unsaturated heterocyclic group”: there can be mentioned monovalent group derived from, for example, 3-pyrroline, 2-pyrazoline, thiazolidine, 2,3-dihydroindole, 1,2,3,3a,4,7,7a-heptahydroisoindole, 1,2,3,6-tetrahydropyridine, 1,4,5,6-tetrahydropiridazine, etc.
“Aromatic heterocyclic group”: there can be mentioned monovalent group derived from, for example, pyrrole, furan, thiophene, pyrazole, imidazole, thiazole, pyridine, pyridazine, pyrimidine, pyrazine, 1,2,3-triazole, 1,2,4-triazole, tetrazole, 1H-indazole, quinoline, isoquinoline, etc.
In the plant pest controlling active compounds of the aforementioned formula (I), preferably there can be mentioned the compounds in which
R1 and R2 form, together with the nitrogen atom to which they are bonded, a heterocyclic group which is a monovalent group derived from a heterocycle selected from aziridine, azetidine, pyrrolidine, 3-pyrroline, piperidine, perhydroazepine, perhydroazocine, perhydro-1,2-diazepine, perhydro-1,2,5-oxadiazepine, 2-pyrazoline, thiazolidine, perhydroindole, 1,2,3,3a,4,7,7a-heptahydroisoindole, 1,2,3,6-tetrahydropyridine, perhydroquinoline, perhydroisoquinoline, 1,4,5,6-tetrahydropyridazine, morpholine, thiomorpholine, thiomorpholine-1,1-dioxide, piperazine, pyrrole, pyrazole, imidazole, 1,2,3-triazole, 1,2,4-triazole, tetrazole or 1H-indazole and may be optionally substituted by one to three groups selected from the group consisting of fluoro, bromo, C1-4alkyl, C1-4haloalkyl, C1-4alkoxy, C1-4alkylthio, benzylthio, hydroxyC1-4alkyl, C1-4alkoxyC1-4alkyl, anilinoC1-4alkyl, C1-4haloalkylene, C1-4alkoxy-carbonyl, benzyloxycarbonyl, C1-4alkyl-carbonyl, C1-7haloalkyl-carbonyl, phenyl, benzyl, pyridyl, hydroxy, oxo, cyano, carboxy, carbamoyl, C1-4alkoxy-carbonylC1-4alkyl, C1-4alkyl-carbonylamino and C1-4haloalkyl-carbonylamino,
R3 represents hydrogen, chloro, bromo, cyano, hydroxy, amino, azido, C1-6alkyl, C1-6haloalkyl, C1-6alkoxyC1-6alkyl, C3-7cycloalkyl, C2-7alkenyl, C2-7alkynyl, C1-6alkoxy, C1-6haloalkoxy, C2-7alkenyloxy, C2-7haloalkenyloxy, C1-6alkylthio, C2-7alkenylthio, C2-7haloalkenylthio, C1-6alkylsulfinyl, C1-6alkylsulfonyl, phenoxy, benzyloxy, phenyl that may be optionally substituted by one or two groups selected from the group consisting of chloro, C1-6alkyl, C1-6alkoxy and C1-6haloalkyl, phenylC1-4alkyl that may be optionally chloro-substituted, or phenoxyC1-4alkyl that may be optionally chloro-substituted, or
R3 represents a heterocyclic group which is a monovalent group derived from a heterocycle selected from pyrrolidine, piperidine, morpholine, thiomorpholine, piperazine, thiophene, thiazole, pyridine, quinoline, isoquinoline, pyrazine, pyridazine, pyrimidine, imidazole, pyrazole, tetrazole, 1,2,4-triazole and 2,3-dihydroindole, and may be optionally substituted by a group selected from the group consisting of chloro, bromo, C1-6alkyl and C1-6haloalkyl, or
R3 represents a group selected from the group consisting of the following groups A-H and J-M
in which
R7 represents hydrogen atom, C1-6alkyl or C1-6haloalkyl,
R8 represents C1-6alkyl, phenyl, C1-6alkoxy or cyano,
R7 and R8 form, together with the carbon atom to which they are bonded, C5-8cycloalkylidene,
R9 represents C1-6alkyl, C2-7haloalkenyl or benzyl,
R10 represents hydrogen atom or C1-6alkyl,
R11 represents C1-6alkyl, C1-6alkoxyC1-6alkyl, di(C1-6alkyl)aminoC1-6alkyl,
phenyl, benzyl or cyano,
R12 represents C1-6alkyl or phenyl,
R13 represents C1-6alkyl or benzyl,
R14 represents hydrogen atom or C1-6alkyl,
R15 represents hydrogen atom, C1-6haloalkyl or phenyl,
R16 represents hydrogen atom or C1-6alkyl,
R17 represents hydrogen atom, C1-6alkyl or C1-6haloalkyl,
R18 represents C1-6alkyl or phenyl,
R19 represents hydrogen atom or C1-6alkyl,
R20 represents C1-6alkyl,
R21 represents C1-6alkyl,
R22 represents C1-6alkyl, C2-7alkenyl, C2-7haloalkenyl, C1-6alkoxyC1-6alkyl, phenoxyC1-6alkyl or C1-6alkoxycarbonylC1-6alkyl,
R23 represents C1-6alkyl,
R24 represents hydrogen atom or C1-6alkyl,
R25 represents C1-6alkyl or phenyl,
R24 and R25 form, together with the nitrogen atom to which they are bonded, a saturated-monocyclic, heterocyclic group which is a monovalent group derived from a monoheterocycle selected from the group consisting of pyrrolidine, piperidine, morpholine and piperazine and may be optionally substituted by C1-4alkyl,
R4 represents hydrogen atom, fluoro, chloro, cyano, C1-6alkyl,
C1-6haloalkyl, C2-7alkenyl, C2-7alkynyl, C1-6alkoxy, C1-6haloalkoxy, C1-6alkylthio,
C1-6haloalkylthio, C1-6alkylsulfinyl, C1-6alkylsulfonyl or pyrazolyl that may be optionally C1-6alkyl-substituted or C1-6haloalkyl-substituted,
R5 and R6 each independently represents hydrogen atom, fluoro, C1-4alkyl, C1-4haloalkyl or phenyl, and
Q represents naphthyl, phenyl that may be optionally substituted, pyridyl that may be optionally substituted, thienyl that may be optionally substituted, or furyl that may be optionally substituted, wherein substituents to phenyl, pyridyl, thienyl and furyl are one to five groups selected from the group consisting of fluoro, chloro, C1-4alkyl, C1-4haloalkyl, C1-4alkoxy, C1-4haloalkoxy, cyano, nitro, amino and phenyl.
In the plant pest controlling active compounds of the aforementioned formula (I), particularly preferably there can be mentioned the compounds in which
R1 and R2 form, together with the nitrogen atom to which they are bonded, a heterocyclic group which is a monovalent group derived from a heterocycle selected from the group consisting of aziridine, azetidine, pyrrolidine, 3-pyrroline, piperidine, perhydroazepine, perhydroazocine, perhydro-1,2-diazepine, perhydro-1,2,5-oxadiazepine, 2-pyrazoline, thiazolidine, perhydroindole, 1,2,3,3a,4,7,7a-heptahydroisoindole, 1,2,3,6-tetrahydropyridine, perhydroquinoline, perhydroisoquinoline, 1,4,5,6-tetrahydropyridazine, morpholine, thiomorpholine, thiomorpholine-1,1-dioxide, piperazine, pyrrole, pyrazole, imidazole, 1,2,3-triazole, 1,2,4-triazole, tetrazole and 1H-indazole and may be optionally substituted with 1-3 groups selected from the group consisting of fluoro, bromo, methyl, ethyl, n-propyl, fluoromethyl, trifluoromethyl, 2,2,2-trifluoroethyl, methoxy, methylthio, benzylthio, hydroxymethyl, 2-hydroxyethyl, methoxymethyl, anilinomethyl, difluoromethylene, dichloromethylene, methoxycarbonyl, ethoxycarbonyl, benzyloxycarbonyl, acetyl, trifluoromethylcarbonyl, trichloromethylcarbonyl, 1,1,2,2-tetrafluoroethylcarbonyl, perfluoroethylcarbonyl, perfluoroheptylcarbonyl, phenyl, benzyl, 2-pyridyl, hydroxy, oxo, cyano, carboxy, carbamoyl, ethoxycarbonylmethyl, methylcarbonylamino and trifluoromethylcarbonylamino,
R3 represents hydrogen, chloro, cyano, hydroxy, amino, azido, methyl, ethyl, iso-propyl, tert-butyl, trifluoromethyl, methoxymethyl, cyclopropyl, allyl, ethynyl, 1-propynyl, methoxy, ethoxy, n-propyloxy, n-butyloxy, 2,2,2-trifluoroethyloxy, allyloxy, 2-methyl-4-pentenyloxy, 3-chloro-4,4,4-trifluoro-2-butenyloxy, methylthio, ethylthio, n- or iso-propylthio, n-, sec- or tert-butylthio, allylthio, 3,3-dichloroallylthio, methylsulfinyl, methylsulfonyl, phenoxy, benzyloxy, phenyl that may be optionally substituted with 1-2 groups selected from the group consisting of chloro, methyl, methoxy and trifluoromethyl, benzyl that may be optionally chloro-substituted, or phenoxymethyl that may be optionally chloro-substituted, or
R3 represents a heterocyclic group which is a monovalent group derived from a heterocycle selected from the group consisting of pyrrolidine, piperidine, morpholine, thiomorpholine, piperazine, thiophene, thiazole, pyridine, quinoline, isoquinoline, pyrazine, pyridazine, pyrimidine, imidazole, pyrazole, tetrazole, 1,2,4-triazole and 2,3-dihydroindole, and may be optionally substituted with a group selected from the group consisting of chloro, bromo, methyl and trifluoromethyl, or
R3 represents a group selected from the group consisting of the following groups A-H and J-M
in which
R7 represents hydrogen atom, methyl or trifluoromethyl,
R8 represents methyl, iso- or tert-butyl, neo-pentyl, phenyl, ethoxy or cyano, or
R7 and R8 form, together with the carbon atom to which they are bonded, cyclopentylidene or cyclohexylidene,
R9 represents methyl, 3,3-dichloroallyl or benzyl,
R10 represents hydrogen atom, methyl or ethyl,
R11 represents methyl, ethyl, iso-propyl, methoxyethyl, dimethylaminoethyl, phenyl, benzyl or cyano,
R12 represents methyl or phenyl,
R13 represents methyl or benzyl,
R14 represents hydrogen atom or methyl,
R15 represents hydrogen atom, 2,2,2-trifluoroethyl or phenyl,
R16 represents hydrogen atom or methyl,
R17 represents hydrogen atom, methyl or trifluoromethyl,
R18 represents methyl or phenyl,
R19 represents hydrogen atom or methyl,
R20 represents methyl, ethyl, n- or iso-propyl,
R21 represents methyl or ethyl,
R22 represents methyl, ethyl, n-propyl, n- or tert-butyl, allyl, 2-chloro-2-propenyl, 3-chloro-2-propenyl, 3,3-dichloro-2-propenyl, 2-methoxyethyl, 2-phenoxypropyl or tert-butoxycarbonylmethyl,
R23 represents methyl,
R24 represents hydrogen atom or methyl,
R25 represents iso-propyl or phenyl,
R24 and R25 form, together with the nitrogen atom to which they are bonded, a saturated-monoheterocyclic group which is a monovalent group derived from a monoheterocycle selected from the group consisting of pyrrolidine, piperidine, morpholine and piperazine and may be optionally substituted with methyl,
R4 represents hydrogen atom, chloro, cyano, methyl, trifluoromethyl, allyl, ethynyl, 1-propynyl, methoxy, 2,2,2-trifluoroethoxy, methylthio, C1-6haloalkylthio, methylsulfinyl, methylsulfonyl or pyrazolyl that may be optionally methyl-substituted or trifluoromethyl-substituted,
R5 and R6 each independently represents hydrogen atom, fluoro, methyl, ethyl, iso-propyl, trifluoromethyl or phenyl, and
Q represents naphthyl, phenyl that may be optionally substituted, pyridyl that may be optionally substituted, thienyl that may be optionally substituted, or furyl that may be optionally substituted, wherein substituents to phenyl, pyridyl, thienyl and furyl are 1-5 groups selected from the group consisting of fluoro, chloro, methyl, tert-butyl, trifluoromethyl, methoxy, trifluoromethoxy, cyano, nitro, amino and phenyl,
Similarly, in the compounds of the aforementioned formula (IA), there can be mentioned the compounds in which R1A, R2A, R3A, R4A, R5A, R6A, R7A, R8A, R9A, R10A, R11A, R12A, R13A, R14A, R15A, R16A, R17A, R18A, R19A, R20A, R21A, R22A, R23A, R24A, R25A and QA each has the same definition as the definition of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 and Q mentioned in the definition of the preferable compounds of the aforementioned formula (I), respectively,
provided that, the following cases (T-1)-(T-6) are excluded:
(T-1) the case in which group
represents 1-pyrrolyl, 1-imidazolyl, 3-oxopiperidino or 4-oxopiperidino, R3A represents hydrogen atom, R4A represents hydrogen atom, and QA represents 1-naphthyl or phenyl group that may be optionally substituted by one or two groups selected from the group consisting of chloro, methyl, ethyl and trifluoromethyl,
(T-2) the case in which group
represents 3-oxopiperidino, 4-oxopiperidino, 4-hydroxypiperidino, 4-carbamoylpiperidino, 4-methylpiperazino, 4-ethylpiperazino, 4-(2-hydroxyethyl)piperazino or morpholino, R3A represents amino, R4A represents hydrogen atom, and QA represents 3-pyridyl or phenyl group that may be optionally substituted by one to three groups selected from the group consisting of fluoro, chloro, methyl, ethyl, isopropyl, trifluoromethyl and methoxy,
(T-3) the case in which group
represents piperidino, 4-hydroxypiperidino, 4-methylpiperazino or morpholino, R3A represents chloro, dimethylamino, anilino, piperidino, 4-methylpiperazino or morpholino, R4A represents hydrogen atom, and QA represents phenyl group that may be optionally substituted by one or two groups selected from the group consisting of methyl and methoxy,
(T-4) the case in which group
represents 1-pyrrolidinyl, piperidino, morpholino or 1-pyrrolyl, R3A represents methyl or methoxymethyl, R4A represents chloro, and QA represents phenyl or 1-naphthyl,
(T-5) the case in which group
represents 1-azilidinyl, piperidino or morpholino, R3A represents methylthio, R4A represents chloro, and QA represents phenyl group substituted by methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy or iso-butoxy,
(T-6) the case in which group
represents 1-azilidinyl, R3A represents hydrogen atom or amino, R4A represents chloro, and QA represents phenyl group substituted by methoxy or ethoxy,
as preferable.
Moreover, in the compounds of the aforementioned formula (IA), the compounds in which R1A, R2A, R3A, R4A, R5A, R6A, R7A, R8A, R9A, R10A, R11A, R12A, R13A, R14A, R15A, R16A, R17A, R18A, R19A, R20A, R21A, R22A, R23A, R24A, R25A and QA each has the same definition as the definition of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 and Q mentioned in the definition of the particularly preferable compounds of the aforementioned formula (I), respectively,
provided that, the following cases (T-1)-(T-6) are excluded:
(T-1) the case in which group
represents 1-pyrrolyl, 1-imidazolyl, 3-oxopiperidino or 4-oxopiperidino, R3A represents hydrogen atom, R4A represents hydrogen atom, and QA represents 1-naphthyl or phenyl group that may be optionally substituted by one or two groups selected from the group consisting of chloro, methyl and trifluoromethyl,
(T-2) the case in which group
represents 3-oxopiperidino, 4-oxopiperidino, 4-hydroxypiperidino, 4-carbamoylpiperidino, 4-methylpiperazino, 4-ethylpiperazino, 4-(2-hydroxyethyl)piperazino or morpholino, R3A represents amino, R4A represents hydrogen atom, and QA represents 3-pyridyl or phenyl group that may be optionally substituted by one to three groups selected from the group consisting of fluoro, chloro, methyl, trifluoromethyl and methoxy,
(T-3) the case in which group
represents piperidino, 4-hydroxypiperidino, 4-methylpiperazino or morpholino, R3A represents chloro, dimethylamino, anilino, piperidino, 4-methylpiperazino or morpholino, R4A represents hydrogen atom, and QA represents phenyl group that may be optionally substituted by one or two groups selected from the group consisting of methyl and methoxy,
(T-4) the case in which group
represents 1-pyrrolidinyl, piperidino, morpholino or 1-pyrrolyl, R3A represents methyl
or methoxymethyl, R4A represents chloro, and QA represents phenyl or 1-naphthyl,
(T-5) the case in which group
represents 1-azilidinyl, piperidino or morpholino, R3A represents methylthio, R4A represents chloro, and QA represents phenyl group substituted with methoxy,
(T-6) the case in which group
represents 1-azilidinyl, R3A represents hydrogen atom or amino, R4A represents chloro, and QA represents phenyl group substituted with methoxy,
are particularly preferable.
The aforementioned preparation process (a) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4,6-dichloropirimidine and pyrrolidine are used as starting materials.
The aforementioned preparation process (b) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-2-methylthio-6-pyrrolidin-1-yl-pirimidine is used as starting material and, for example, m-chloroperbenzoic acid, as oxidizing agent.
The aforementioned preparation process (c) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-2-methanesulfonyl-6-pyrrolidin-1-yl-pirimidine and pyrazole are used as starting materials.
The aforementioned preparation process (d) can be illustrated by the following reaction scheme in case that, for example, 4-chloro-5-(3-fluorobenzyl)-6-pyrrolidin-1-yl-pirimidine and sodium methoxide are used as starting materials.
The aforementioned preparation process (e) can be illustrated by the following reaction scheme in case that a starting material, for example, 4-chloro-5-(3-fluorobenzyl)-6-pyrrolidin-1-yl-pirimidine is catalytically hydrogenated.
The aforementioned preparation process (f) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-6-(2,5-dihydropyrrol-1-yl)pyrimidine and sodium chlorodifluoroacetate are used as starting materials.
The aforementioned preparation process (g) can be illustrated by the following reaction scheme in case that, for example, 2-azido-5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidine and sodium borohydride are used as starting materials.
The aforementioned preparation process (h) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidin-2-ylamine and tert-butyl nitrite and copper (II) chloride are used as starting materials (Sandmeyer process).
The aforementioned preparation process (i) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidin-2-ylamine and dimethylformamide dimethylacetal and O-methylhydroxylammonium chloride are used as starting materials.
The aforementioned preparation process (j) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidin-2-ylamine and acetic anhydride are used as starting materials.
The aforementioned preparation process (k) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidine-2-carbonitrile and methyl magnesium bromide are used as starting materials.
The aforementioned preparation process (l) can be illustrated by the following reaction scheme in case that, for example, 1-(5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidin-2-yl)ethanone and O-ethylhydroxylammonium chloride are used as starting materials.
The aforementioned preparation process (m) can be illustrated by the following reaction scheme in case that, for example, 5-benzyl-4-chloro-6-(pyrrolidin-1-yl)pyrimidine-2-carbonitrile and hydroxylammonium chloride are
used as starting materials.
The compounds of the formula (II), starting materials in the above-mentioned preparation process (a), which are partly novel compounds and are not described in the existing literatures, can be easily prepared, for example, by reacting a compound represented by the formula
wherein
R4Aa2 represents hydrogen atom, hydroxy, alkyl, haloalkyl or alkenyl,
R3Aa, R5A, R6A and QA have the same definition as aforementioned,
with a halogenating agent, for example, phosphorus oxychloride, phosphorus oxybromide, etc. according to the process described in Journal of Heterocyclic Chemistry, Vol. 29, p. 1369-1370 (1992); Journal of Organic Chemistry, Vol. 32, No. 2, p. 1591-1596 (1967), etc.
The compounds of the above-mentioned formula (XII), which are partly novel compounds and are not described in the existing literatures, can be easily prepared, for example, by reacting a compound represented by the formula
wherein
R4Aa3 represents hydrogen atom, alkyl, haloalkyl, alkenyl or C1-4alkoxy,
R26A represents C1-4alkyl,
R5A, R6A and QA have the same definition as aforementioned,
with a compound represented by the formula
wherein
R3Aa has the same definition as aforementioned,
according to the process described in, for example, Journal of the American Chemical Society, Vol. 77, p. 745-749 (1955); Journal of the American Chemical Society, Vol. 69, p. 2941-2942 (1938), etc.
The above-mentioned formula (XIII), which is also partly novel compounds that are not described in the existing literatures, can be easily prepared, for example, by reacting a compound represented by the formula
wherein
R4Aa3 and R26A have the same definition as aforementioned,
with a compound represented by the formula
wherein
X1 represents halogen, preferably chloro, bromo or iodo,
R5A, R6A and QA have the same definition as aforementioned,
according to the process described in, for example, Japanese Laid-open Patent Publication No. 228500/1999 etc.
The compounds of the above-mentioned formulae (XV) and (XVI) are per se known compounds.
The above-mentioned formula (XIV), which is partly novel compounds that are not described in the existing literatures, can be easily prepared, for example, from a compound represented by the formula
R3Aa—CN (XVII)
wherein
R3Aa has the same definition as aforementioned,
by treating according to the process described in Journal of Organic Chemistry, Vol. 26, p. 412-418 (1961); Journal of Organic Chemistry, Vol. 34, p. 292-296 (1969); Chemical Reviews Washington, D. C., Vol. 35, p. 351-425 (1944), etc.
The compounds of the above-mentioned formula (XVII) are per se known compounds.
The compounds of the formula (III), starting materials in the above-mentioned preparation process (a), are per se known compounds.
As specific examples for the compounds of the formula (II), used as the starting materials in the above-mentioned preparation process (a), can be mentioned as follows:
As specific examples for the compounds of the formula (XII), used as starting materials in the preparation of the compounds of the aforementioned formula (II), the following can be mentioned:
As specific examples for the compounds of the formula (XIII), used as starting materials in the preparation of the compounds of the aforementioned formula (XII), the following can be mentioned:
As specific examples for the compounds of the formula (XIV), used as starting materials in the preparation of the compounds of the aforementioned formula (XII), the following can be mentioned:
As specific examples for the compounds of the formula (XV), used as the starting materials in the preparation of the compounds of the aforementioned formula (XIII), the following can be mentioned:
As specific examples for the compounds of the formula (XVI), used as the starting materials in the preparation of the compounds of the aforementioned formula (XII), the following can be mentioned:
As specific examples for the compounds of the formula (XVII, used as the starting materials in the preparation of the compounds of the aforementioned formula (XIV), the following can be mentioned:
As specific examples for the compounds of the formula (III), used as
the starting materials in the above-mentioned preparation process (a), the following can be mentioned:
The compounds of the formula (IAb), used as the starting materials in the above-mentioned preparation process (b), can be prepared by the aforementioned preparation processes (a), (d), (e) or (f) and as their specific examples the following can be mentioned:
As oxidizing agents used in the above-mentioned preparation process (b), there can be mentioned, for example, m-chloroperbenzoic acid, hydrogen peroxide, and so on.
The compounds of the formula (IAc), used as the starting materials in the above-mentioned preparation process (c), are compounds that can be prepared by the aforementioned preparation processes (b) or (h) and as their specific examples the following can be mentioned:
The compounds of the formula (IV), used as the starting materials in the above-mentioned preparation process (c), are per se known compounds and can be prepared according to the process described in, for example, Bulletin of the Chemical Society of Japan, Vol. 64, p. 2948-2953 (1991); Journal of Organic Chemistry, Vol. 31, p. 677-681 (1966); Journal of the American Chemical Society, Vol. 75, p. 4053-4054 (1953), etc. As their specific examples the following can be mentioned:
sodium cyanide, copper cyanide, tetrabutylammonium cyanide, sodium azide, 1-hexyne, ethynyltrimethylsilane, sodium methoxide, 2,2,2-trifluoroethanol, allyl alcohol, 3-chloro-4,4,4-trifluoro-2-buten-1-ol, sodium thiomethoxide, phenol, benzyl alcohol, pyrrolidine, pyrazole, imidazole, 1,2,4-triazole, cyclopentane oxime, 2-(hydroxyimino)propanenitrile, O-benzylhydroxylamine, aniline, hydrazine hydrate, N-methyl-N-(1-phenylethylidene)hydrazine, N-phenylguanidine, and so on.
The compounds of the formula (IAd), used as the starting materials in the above-mentioned preparation process (d), can be prepared by the aforementioned preparation processes (a) or (f) and as their specific examples the following can be mentioned:
The compounds of the formula (V), used as the starting materials in the above-mentioned preparation process (d) are per se known compounds and as their specific examples the following can be mentioned:
sodium cyanide, potassium cyanide, copper (I) cyanide, sodium methoxide, 2,2,2-trifluoroethanol, sodium thiomethoxide, 2,2,2-trifluoroethanethiol, 1-hexyne, pyrazole, imidazole, 1,2,4-triazole, and so on.
The compounds of the formula (IAe), used as the starting materials in the above-mentioned preparation process (e), are compounds that can be prepared by the above-mentioned preparation processes (a) or (f) and as their specific examples the following can be mentioned:
As catalyst used in the above-mentioned preparation process (e), there can be mentioned, for example, palladium-carbon and so on.
The compounds of the formula (IAf), used as the starting materials in the above-mentioned preparation process (f), can be prepared by the aforementioned preparation processes (a), (c) or (d) and as their specific examples the following can be mentioned:
The compounds of the formula (IAg), use as the starting materials in the above-mentioned preparation process (g), can be prepared by the aforementioned preparation process (c) and as their specific examples the following can be mentioned:
As catalyst used in the above-mentioned preparation process (g), there can be mentioned, for example, palladium-carbon and so on.
As metal hydrides used in the above-mentioned preparation process (g), there can be mentioned, for example, sodium borohydride, lithium aluminium hydride, and so on.
The compounds of the formula (IAh), used as the starting materials in the first step of the above-mentioned preparation process (h), the first step of the above-mentioned preparation process (i) and the above-mentioned preparation process (j) can be prepared by the aforementioned preparation processes (c) or (g) and as their specific examples the following can be mentioned:
As nitrite esters used in the first step of the above-mentioned preparation process (h), there can be mentioned, for example, tert-butyl nitrite etc., and nitrous acid can be formed on the spot, for example, by exposing sodium nitrite to an acidic condition.
As copper halides or potassium halides used in the second step of the above-mentioned preparation process (h), there can be mentioned, for example, copper (I) chloride, copper (II) chloride, copper (I) bromide, copper (II) bromide, potassium iodide, and so on.
As specific examples of the compounds of the formula (VI), use as the starting materials in the second step of the above-mentioned preparation process (i), the following can be mentioned:
The compounds of the formula (VII), used as the starting materials in the above-mentioned preparation process (i) are per se known compounds and as their specific examples the following can be mentioned:
The compounds of the formula (VIII), used as the starting materials in the above-mentioned preparation process (j) are per se known compounds and as their specific examples the following can be mentioned:
acetic anhydride, propionic anhydride, acetyl chloride, n-butyryl chloride, benzoyl chloride, and so on.
The compounds of the formula (IAk), used as the starting materials in the above-mentioned preparation process (k) and the above-mentioned preparation process (m) can be prepared by the aforementioned preparation processes (c) or (d) and as their specific examples the following can be mentioned:
The compounds of the formula (IX), used as the starting materials in the above-mentioned preparation process (k) are per se known compounds and can be also prepared according to the process described in, for example, Journal of the American Chemical Society, Vol. 94, p. 5421-5434 (1972) etc. As their specific examples the following can be mentioned:
The compounds of the formula (IAl), used as the starting materials in the above-mentioned preparation process (l) can be prepared by the aforementioned preparation process (k) and as their specific examples the following can be mentioned:
The compounds of the formula (X), used as the starting materials in the above-mentioned preparation process (l) are per se known compounds and as their specific examples the following can be mentioned:
The compounds of the formula (XI), used as the starting materials in the above-mentioned preparation process (m) are per se known compounds and as their specific examples the following can be mentioned:
The compounds of the formula (IAc), Xc of which represents iodo, used as the starting materials in the above-mentioned preparation process (c), can be easily prepared from compounds, Xc of which is chloro, according to the process described in, for example, Journal of Heterocyclic Chemistry, Vol. 23, p. 1079-1084 (1986); Journal of the Chemical Society, (c), p. 1204-1209 (1967), etc. and the compounds of the formula (IAd), Xd of which represents iodo, starting materials in the above-mentioned preparation process (d), can be easily prepared from compounds, Xd of which is chloro, according to the similar process,
The reaction of the above-mentioned preparation process (a) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; ketones, for example, acetone, methyl ethyl ketone (MEK), methyl isopropyl ketone, methyl isobutyl ketone (MIBK), etc.; nitriles, for example, acetonitrile, propionitrile, acrylonitrile, etc.; esters, for example, ethyl acetate, amyl acetate, etc.; acid amides, for example, dimethylformamide (DMF), dimethylacetamide (DMA), N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoric triamide (HMPA), etc.; sulfones, sulfoxides, for example, dimethyl sulfoxide (DMSO), sulfolane, etc.; bases, for example, pyridine etc.
The preparation process (a) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.; inorganic alkali metal amides, for example, lithium amide, sodium amide, potassium amide, etc.; as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine, 1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), etc.; organic amine hydrochlorides, for example, pyridine hydrochloride, triethylamine hydrochloride, etc.; amine sulfonates, for example, pyridine p-toluenesulfonate, triethylamine p-toluenesulfonate, etc.
The preparation process (a) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (a), the aimed compound can be obtained, for example, by reacting 1.1 to 8.0 moles of a compound of the formula (III) to 1 mole of a compound of the formula (II) in a diluent, for example, tetrahydrofuran, in the presence of triethylamine.
The reaction of the above-mentioned preparation process (b) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.; esters, for example, ethyl acetate, amyl acetate, etc.; carboxylic acids, for example, acetic acid etc.
The preparation process (b) can be conducted in the presence of a catalyst and as example of said catalyst there can be mentioned, for example, tungstates etc.
The preparation process (b) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure
In conducting the preparation process (b), the aimed compound can be obtained, for example, by reacting 2.0 to 2.4 moles of m-chloroperbenzoic acid (MCPBA) to 1 mole of a compound of the formula (IAb) in a diluent, for example,
dichloromethane.
The reaction of the above-mentioned preparation process (c) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; ketones, for example, acetone, methyl ethyl ketone (MEK), methyl isopropyl ketone, methyl isobutyl ketone (MIBK), etc.; nitriles, for example, acetonitrile, propionitrile, acrylonitrile, etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.; acid amides, for example, dimethylformamide (DMF), dimethylacetamide (DMA), N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoric triamide (HMPA), etc.; sulfones, sulfoxides, for example, dimethyl sulfoxide (DMSO), sulfolane, etc.; bases, for example, pyridine etc.
The preparation process (c) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.; inorganic alkali metal amides, for example, lithium amide, sodium amide, potassium amide, etc.; as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine, 1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), etc.; organic lithium compounds, for example, methyl lithium, n-butyl lithium, sec-butyl lithium, tertbutyl lithium, phenyl lithium, dimethyl copper lithium, lithium diisopropyl amide, lithium cyclohexyl isopropyl amide, lithium dicyclohexyl amide, n-butyl lithium.DABCO, n-butyl lithium.DBU, n-butyl lithium.TMEDA, etc.; organic amine hydrochlorides, for example, pyridine hydrochloride, triethylamine hydrochloride, etc.; amine sulfonates, for example, pyridine p-toluenesulfonate, triethylamine p-toluenesulfonate, etc.
The preparation process (c) can be conducted in the presence of a catalyst and as example of said catalyst there can be mentioned, for example, palladium catalysts such as dichlorobis(triphenylphosphine) palladium, etc., metal catalysts such as copper (I) iodide etc.
The preparation process (c) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about 0 to about 150° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (c), the aimed compound can be obtained, for example, by reacting 1.5 to 2.5 moles of a compound of the formula (IV) to 1 mole of a compound of the formula (IAc) in a diluent, for example, DMF, in the presence of potassium carbonate.
The reaction of the above-mentioned preparation process (d) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; ketones, for example, acetone, methyl ethyl ketone (MEK), methyl isopropyl ketone, methyl isobutyl ketone (MIBK), etc.; nitriles, for example, acetonitrile, propionitrile, acrylonitrile, etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.; esters, for example, ethyl acetate, amyl acetate, etc.; acid amides, for example, dimethylformamide (DMF), dimethylacetamide (DMA), N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoric triamide (HMPA), etc.; sulfones, sulfoxides, for example, dimethyl sulfoxide (DMSO), sulfolane, etc.; bases, for example, pyridine etc.
The preparation process (d) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.; inorganic alkali metal amides, for example, lithium amide, sodium amide, potassium amide, etc.; as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine, 1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), etc.; organic lithium compounds, for example, methyl lithium, n-butyl lithium, sec-butyl lithium, tertbutyl lithium, phenyl lithium, dimethyl copper lithium, lithium diisopropyl amide, lithium cyclohexyl isopropyl amide, lithium dicyclohexyl amide, n-butyl lithium.DABCO, n-butyl lithium.DBU, n-butyl lithium.TMEDA, etc.; organic amine hydrochlorides, for example, pyridine hydrochloride, triethylamine hydrochloride, etc.; amine sulfonates, for example, pyridine p-toluenesulfonate, triethylamine p-toluenesulfonate, etc.
The preparation process (d) can be conducted in the presence of a catalyst and as example of said catalyst there can be mentioned, for example, palladium catalysts such as dichlorobis(triphenylphosphine) palladium etc. and metal catalysts such as copper (I) iodide etc.
The preparation process (d) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (d), the aimed compound can be obtained, for example, by reacting 1.5 to 2.5 moles of a compound of the formula (V) to 1 mole of a compound of the formula (IAd) in a diluent, for example, THF, in the presence of triethylamine.
The reaction of the above-mentioned preparation process (e) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; aromatic hydrocarbons, for example, benzene, toluene, xylene, etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.; esters, for example, ethyl acetate, amyl acetate, etc.; carboxylic acids, for example, acetic acid etc.
The preparation process (e) can be conducted in the presence of a catalyst and as said catalyst there can be mentioned, for example, palladium carbon etc.
The preparation process (e) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.
The preparation process (e) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −40 to about 180° C., preferably about 0 to about 140° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (e), the aimed compound can be obtained, for example, by reacting a catalytic amount of palladium carbon to 1 mole of a compound of the formula (IAe) in a diluent, for example, toluene-ethanol, in the presence of aqueous solution of sodium carbonate and in hydrogen atmosphere.
The reaction of the above-mentioned preparation process (f) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; nitriles, for example, acetonitrile, propionitrile, acrylonitrile, etc.
The preparation process (f) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −40 to about 200° C., preferably about 0 to about 180° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (f), the aimed compound can be obtained, for example, by reacting 5 to 20 moles of sodium chlorodifluoroacetate to 1 mole of a compound of the formula (IAf) at about 180° C. in a diluent, for example, diglyme.
The reaction of the above-mentioned preparation process (g) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; aromatic hydrocarbons, for example, benzene, toluene, xylene, etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.; esters, for example, ethyl acetate, amyl acetate, etc.; acid amides, for example, dimethylformamide (DMF), dimethylacetamide (DMA), N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoric triamide (HMPA), etc.; sulfones, sulfoxides, for example, dimethyl sulfoxide (DMSO), sulfolane, etc.; carboxylic acids, for example, acetic acid etc.
The preparation process (g) can be conducted in the presence of an appropriate catalyst and as said catalyst there can be mentioned, for example, palladium carbon etc.
The preparation process (g) can be conducted also by using an appropriate metal hydride and as said metal hydrides there can be mentioned, for example, sodium borohydride, lithium aluminium hydride, etc.
In conducting the preparation process (g), the aimed compound can be obtained, for example, by reacting a catalytic amount of palladium carbon to 1 mole of a compound of the formula (IAg) in a diluent, for example, ethanol, in hydrogen atmosphere.
The reaction of the first step and the second step of the above-mentioned preparation process (h) can be conducted continuously in one pot in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; ketones, for example, acetone, methyl ethyl ketone (MEK), methyl isopropyl ketone, methyl isobutyl ketone (MIBK), etc.; nitriles, for example, acetonitrile, propionitrile, etc.; sulfones, sulfoxides, for example, dimethyl sulfoxide (DMSO), sulfolane, etc.; carboxylic acids, for example, acetic acid; mineral acids, for example, hydrochloric acid, sulfuric acid, etc.
The preparation process (h) can be conducted in the presence of an acid catalyst and as example of said acid catalyst there can be mentioned mineral acids, for example, nitric acid, hydrobromic acid, etc.
The preparation process (h) can be conducted in the presence of a catalyst and as example of such catalyst there can be mentioned copper halide compounds, for example, copper (I) chloride, copper (II) chloride, etc.
The reaction of the first step and the second step of the preparation process (h) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −40 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (h), the aimed compound can be obtained, for example, by reacting 1.2 to 2.5 moles of tert-butyl nitrite to 1 mole of a compound of the formula (IAh) in a diluent, for example, acetonitrile, in the presence of copper (II) chloride.
The reaction of the first step of the above-mentioned preparation process (i) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned aromatic hydrocarbons, for example, benzene, toluene, xylene, etc.; acid amides, for example, dimethylformamide (DMF), dimethylacetamide (DMA), N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoric triamide (HMPA), etc
The first step of the preparation process (h) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −40 to about 180° C., preferably about 0 to about 140° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the first step of the preparation process (i), the aimed compound of the formula (VI) can be obtained, for example, by reacting 1.1 to 2.0 moles of dimethylformamide dimethylacetal to 1 mole of a compound of the formula (IAh) in a diluent, for example, DMF.
The reaction of the second step of the above-mentioned preparation process (i) can also be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.
The second step of the preparation process (i) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride; sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.; as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine, 1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), etc.
The second step of the preparation process (i) can also be conducted in the presence of an acid catalyst. As examples of said acid catalyst there can be mentioned organic acids, for example, formic acid, acetic acid, trifluoroacetic acid, propionic acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, etc.; organic amine hydrochlorides, for example, pyridine hydrochloride, triethylamine hydrochloride, etc.; amine sulfonates, for example, pyridine p-toluenesulfonate, triethylamine p-toluenesulfonate, etc
The second step of the preparation process (i) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −40 to about 180° C., preferably about 0 to about 140° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the second step of the preparation process (i), the objective compound can be obtained, for example, by reacting 1.1 to 8.0 moles of the compound of the formula (VII) to 1 mole of a compound of the formula (VI) in a diluent, for example, toluene, in the presence of triethylamine
In conducting the second step of the preparation process (i), the compound of the formula (IA) can also be obtained by continuously conducting reactions starting from a compound of the formula (IAh) and without isolating and purifying the compound of the formula (VI) intermediately.
The reaction of the above-mentioned preparation process (j) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; bases, for example, pyridine etc.
The preparation process (j) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine, 1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]uradec-7-ene (DBU), etc.
The preparation process (j) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (j), the aimed compound can be obtained, for example, by reacting 0.8 to 1.5 moles of a compound of the formula (VIII) to 1 mole of a compound of the formula (IAh) in a diluent, for example, pyridine.
The reaction of the above-mentioned preparation process (k) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.
The preparation process (k) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (k), the aimed compound can be obtained, for example, by reacting 1.1 to 3.3 moles of a compound of the formula (IX) to 1 mole of a compound of the formula (IAk) in a diluent, for example, ethyl ether.
The reaction of the above-mentioned preparation process (l) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water, aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc
The preparation process (l) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.; as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine, 1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), etc.
The preparation process (l) can also be conducted in the presence of an acid catalyst. As examples of said acid catalyst there can be mentioned p-toluenesulfonic acid, etc.; organic amine salts, for example, pyridine p-toluenesulfonate etc.
The preparation process (l) can be conducted in a substantially wide range of temperature. There can be applied temperatures generally of about −78 to about 180° C., preferably about −20 to about 120° C. Although said reaction is conducted desirably under normal pressure, it can be conducted optionally under elevated pressure or under reduced pressure.
In conducting the preparation process (l), the objective compound can be obtained, for example, by reacting 1.1 to 8.0 moles of a compound of the formula (X) to 1 mole of a compound of the formula (IAl) in a diluent, for example, ethanol, in the presence of sodium hydrogen carbonate.
The reaction of the above-mentioned preparation process (m) can be conducted in an appropriate diluent. As examples of the diluent usable in that case there can be mentioned water; aliphatic, alicyclic and aromatic hydrocarbons (may be optionally chlorinated), for example, pentane, hexane, cyclohexane, petroleum ether, ligroine, benzene, toluene, xylene, dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, etc.; ethers, for example, ethyl ether, methyl ethyl ether, isopropyl ether, butyl ether, dioxane, dimethoxyethane (DME), tetrahydrofuran (THF), diethylene glycol dimethyl ether (DGM), etc.; alcohols, for example, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.
The preparation process (m) can be conducted in the presence of an acid binder, and as said acid binder there can be mentioned, for example, as inorganic bases, hydrides, hydroxides, carbonates and bicarbonates, etc. of alkali metals and alkaline earth metals, for example, sodium hydride, lithium hydride, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium carbonate, potassium carbonate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc.; as organic bases, alcoholates, tertiary amines, dialkylaminoanilines and pyridines, for example, triethylamine,
1,1,4,4-tetramethylethylenediamine (TMEDA), N,N-dimethylaniline, N,N-diethylaniline, pyridine, 4-dimethylaminopyridine (DMAP), 1,4-diazabicyclo[2,2,2]octane (DABCO) and 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), etc.
The preparation process (m) can also be conducted in the presence of an acid catalyst. As examples of said acid catalyst there can be mentioned organic acids, for example, formic acid, acetic acid, trifluoroacetic acid, propionic acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, etc.; organic amine hydrochlorides, for example, pyridine hydrochloride, triethylamine hydrochloride, etc.; amine sulfonates, for example, pyridine p-toluenesulfonate, triethylamine p-toluenesulfonate, etc.
In conducting the preparation process (m), the aimed compound can be obtained, for example, by reacting 1.1 to 8.0 moles of a compound of the formula (XI) to 1 mole of a compound of the formula (IAk) in a diluent, for example, toluene in the presence of triethylamine.
The active component compounds of the formula (I) of the present invention show a strong fungicidal and bactericidal action and in fact, they can be used to control undesirable plant pathogens.
The active component compounds of the formula (I) of the present invention can be used generally as fungicidal and bacteriacidal agents against various plant diseases by Plasmodiophoromycetes, Oomycetes, Zygomycetes, Ascomycetes, Basidiomycetes and Deuteromycetes.
According to the present invention the active component compounds of the formula (II) show excellent controlling effect particularly against such plant pathogens as Sphaerotheca fuliginea, Gibberella fujikuroi, Alternaria mali, Pyricularia oryzae, Phytophthora infestans, Cochliobolus miyabeanus, Botrytis cinerea, etc.
The active component compounds of the formula (I) of the present invention show good compatibility to plants at the concentration of the active compound necessary to control plant pathogens and, in case of using, chemical treatment of aboveground parts of plant, chemical treatment of stocks and seeds, and soil treatment are possible.
The active component compounds of the formula (I) of the present invention can be used further, in the protection of various materials, to protect them from infection and destruction by undesirable microorganisms.
The materials in the present specification are understood to mean inanimate objects manufactured to be widely used.
As the materials to be able to be protected by the active compounds of the present invention from changes or destruction by attack of microorganisms they can be, for example, adhesives, sizes, paper and cardboard, textiles, leather, wood, (synthetic) paints, cooling lubricants, heat exchange liquid and other materials that can be infected and destructed by microorganisms, among which wood is particularly favorable. In the scope of materials to be protected there can be included a part of a manufacturing plant, for example, a cooling water circuit that can be damaged by proliferation of microorganisms.
As examples of the microorganisms that cause deterioration or changes of materials there can be mentioned bacteria, molds, yeasts, algae, slime organisms, etc. The active compounds of the formula (I) of the present invention show actions preferably against molds, molds that discolor wood and/or destruct wood (Basidiomycetes).
As controlling objects, microorganisms of the following genera can be mentioned as examples:
Alternaria, for example, Alternaria tenuis;
Aspergillus, for example, Aspergillus niger;
Chaetomium, for example, Chaetomium globosum;
Coniophora, for example, Coniophora puetana;
Lentinus, for example, Lentinus tigrinus;
Penicillium, for example, Penicillium glaucum;
Polyporus, for example, Polyporus versicolor;
Aureobasidium, for example, Aureobasidium pullulans;
Sclerophoma, for example, Sclerophoma pityophila;
Trichoderma, for example, Trichoderma viride.
Moreover, the active component compounds of the formula (I) of the present invention are low toxic against warm-blooded animals and can be used safely.
The active component compounds of the formula (I), according to the present invention, can be made into customary formulation forms, in case that they are used as agricultural chemicals. As formulation forms there can be mentioned, for example, solutions, wettable powders, emulsions, suspensions, powders, foaming agents, pastes, tablets, granules, aerosols, active compound-impregnated natural and synthetic substances, microcapsules, seed coating agents, ULV [cold mist, warm mist], etc.
These formulations can be prepared according to per se known methods, for example, by mixing the active compounds with extenders, namely liquid diluents, solid diluents or carriers, and optionally with surface-active agents, namely emulsifiers and/or dispersants and/or foam-forming agents
As liquid diluents or carriers there can be mentioned, for example, aromatic hydrocarbons (for example, xylene, toluene, alkylnaphthalene, etc.), chlorinated aromatic or chlorinated aliphatic hydrocarbons (for example, chlorobenzenes, ethylene chlorides, methylene chloride, etc.), aliphatic hydrocarbons [for example, cyclohexane etc. or paraffins (for example, mineral oil fractions etc.)], alcohols (for example, butanol, glycols etc.) and their ethers, esters, etc., ketones (for example, acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, etc.), strongly polar solvents (for example, dimethylformamide, dimethyl sulfoxide, etc.), water, etc. In case of using water as extender, for example, organic solvents can be used as auxiliary solvents.
As solid diluents there can be mentioned, for example, ground natural minerals (for example, kaolin, clay, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth, etc.), ground synthetic minerals (for example, highly dispersed silicic acid, alumina, silicates, etc.).
As solid carriers for granules there can be mentioned, for example, crushed and fractionated rocks (for example, calcite, marble, pumice, sepiolite, dolomite, etc.) synthetic granules of inorganic and organic meals, particles of organic materials (for example, saw dust, coconut shells, maize cobs, tobacco stalks, etc.), etc.
As emulsifiers and/or foam-forming agents there can be mentioned, for example, nonionic and anionic emulsifiers [for example, polyoxyethylene fatty acid esters, polyoxyethylene fatty acid alcohol ethers (for example, alkylaryl polyglycol ethers, alkylsulfonates, alkylsulfates, arylsulfonates, etc.)], albumin hydrolysis products, etc.
Dispersants include, for example, lignin sulfite waste liquor, methyl cellulose, etc.
Tackifiers can also be used in preparations (powders, granules, emulsifiable concentrates). As the tackifiers usable in that case there can be mentioned, for example, carboxymethyl cellulose, natural and synthetic polymers (for example, gum Arabic, polyvinyl alcohol, polyvinyl acetate, etc.).
Colorants can also be used. As said colorants there can be mentioned inorganic pigments (for example, iron oxide, titanium oxide, Prussian Blue, etc,), organic dyestuffs such as alizarin dyestuffs, azo dyestuffs or metal phthalocyanine dyestuffs, and further traces nutrients such as iron, manganese, boron, copper, cobalt, molybdenum, zinc and salts of such metals.
Said formulations can contain the active component compounds of the formula (I) of the present invention at the concentration in the range of generally 0.1 to 95% by weight, preferably 0.5 to 90% by weight.
The active component compounds of the formula (I), according to the present invention can exist, in the above-mentioned formulations or various application forms, together with other known active compounds, for example, germicides (fungicides, bactericides), insecticides, miticides, nematicides, herbicides, bird repellents, growth regulators, fertilizers and/or soil improvement agents.
The active component compounds of the formula (I), according to the present invention can be used directly as they are or used in such a form as ready-to use solutions, emulsifiable concentrates, suspensions, powders, tablets, pastes, microcapsules, granules, etc., or used in application forms prepared by further dilution, when they are practically used. And the active component compounds of the formula (I), according to the present invention can be applied in a usual way, for example, watering, soaking, spraying, atomizing, misting, drenching, suspension formation, painting, dusting, seed dressing, etc.
In case of treating each part of the plant, the concentration of the active component compounds in the actual application form can be varied in a substantial range and can be in the range of generally 0.0001 to 1% by weight, preferably 0.001 to 0.5% by weight.
In case of seed treatment, the active component compounds, according to the present invention can be used in the range of generally 0.001 to 50 g, preferably 0.01 to 10 g per 1 kg of seeds.
In case of soil treatment, the active component compounds, according to the present invention can be used in the range of concentration of generally 0.00001 to 0.1% by weight, particularly 0.0001 to 0.02% by weight at the application point.
Then the present invention is described more specifically by Examples. The present invention, however, should not be restricted to them in any way.
5-Benzyl-4,6-dichloropyrimidine (960 mg, 4.0 mmol) was dissolved in tetrahydrofuran (20 ml), to which then pyrrolidine (660 μl, 8.0 mmol) and triethylamine (1.2 ml, 8.6 mmol) were added and the mixture was refluxed for 3 hours. After finishing the reaction, the precipitation was removed and the filtrate was concentrated under reduced pressure. The residue was purified by flush column chromatography (eluent n-hexane:ethyl acetate 4:1) to obtain 5-benzyl-4-chloro-6-pyrrolidin-1-yl-pyrimidine (1.05 g).
1H NMR (CDCl3, 300 MHz) δ 1.80-1.85 (4H, m), 3.54-3.58 (4H, m), 4.27 (2H, s), 7.082H, d, J=6.9H, z), 7.21-7.31 (3H, m), 8.31 (1H, s).
5-Benzyl-4,6-dichloro-2-methylthiopyrimidine (1.14 g, 4.0 mmol) was dissolved in tetrahydrofuran (20 ml), to which then pyrrolidine (660 μl, 8.0 mmol) and triethylamine (1.2 ml, 8.6 mmol) were added and the mixture was refluxed for 3 hours. After finishing the reaction, the precipitation was removed and the filtrate was concentrated under reduced pressure. The residue was purified by flush column chromatography (eluent n-hexane:ethyl acetate=4:1) to obtain 5-benzyl-4-chloro-2-methylthio-6-pyrrolidin-1-yl-pyrimidine (1.1 g).
mp 97-99° C.
5-Benzyl-4-chloro-2-methylthio-6-pyrrolidin-yl-pyrimidine (1.9 g, 6 mmol) was dissolved in 30 ml of dichloromethane, to which m-chloroperbenzoic acid (3 g, 12 mmol) was added under ice cooling and the mixture was stirred at room temperature for 1 hour. After finishing the reaction, an aqueous solution of sodium thiosulfate was added thereto and the precipitation was filtered off. Then the reaction solution was washed with an aqueous solution of sodium hydrogen carbonate and a saturated aqueous solution of sodium chloride and the solvent was removed under reduced pressure. The residue was purified by flush column chromatography (eluent n-hexane:ethyl acetate=4:1) to obtain 2.0 g of 5-benzyl-4-chloro-2-methanesulfonyl-6-pyrrolidin-1-yl-pyrimidine.
mp 136-138° C.
4-Chloro-5-(3-fluorobenzyl)-6-pyrrolidin-1-yl-pyrimidine (370 mg, 1.3 mmol) was dissolved in tetrahydrofuran (20 ml), to which 28% methanol solution of sodium methoxide (370 mg, 1.9 mmol) was added dropwise at room temperature and the mixture was stirred at room temperature for 2 hours. After finishing the reaction, the reaction solution was poured into ice water and extracted with ethyl acetate. The organic layer was dried with anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure and the obtained crude product was purified by silica gel column chromatography (eluent n-hexane:ethyl acetate=5:1 (v/v)) to obtain 5-(3-fluorobenzyl)-4-methoxy-6-pyrrolidin-1-yl-pyrimidine (0.3 g).
mp 74-76° C.
5-Benzyl-4-chloro-2-methanesulfonyl-6-pyrrolidin-1-yl-pyrimidine (500 mg, 1.42 mmol) was dissolved in N,N-dimethylformamide (50 ml), to which potassium carbonate (390 mg, 2.8 mmol) and pyrazole (145 mg, 2.1 mmol) were added and the mixture was stirred at 50° C. for 3 hours. After finishing the reaction, the reaction solution was poured into water and extracted with ethyl acetate. The solvent was distilled off under reduced pressure and the residue was purified by flush column chromatography (eluent n-hexane:ethyl acetate=4:1) to obtain 5-benzyl-4-chloro-2-pyrazol-1-yl-pyrimidine (400 mg).
mp 149-151° C.
4-Chloro-5-(3-fluorobenzyl)-6-pyrrolidin-1-yl-pyrimidine (500 mg, 1.7 mmol) was dissolved in toluene (7 ml) and ethanol (5 ml), to which an aqueous solution prepared by dissolving sodium carbonate (0.1 g) in water (1 ml) was added. Further, 5% palladium carbon (0.15 g) was added thereto and the mixture was contacted with hydrogen gas at room temperature for 1 hour. After finishing the reaction, the catalyst was filtered off, and the filtrate was separated by adding chloroform and water. The organic layer was dried with anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure and the obtained crude product was purified by silica gel column chromatography (eluent hexane:ethyl acetate=5:1 (v/v)) to obtain 5-(3-fluorobenzyl)-4-pyrrolidin-1-yl-pyrimidine (0.35 g).
mp 51-54° C.
Specific examples of the compounds obtained in the same manner to the above-mentioned Synthesis Examples 1-6 are shown, together with the compounds synthesized in Synthesis Examples 1-6, in the following Tables 1-3, and their physical and chemical properties are shown in Table 4.
In the compounds of the formula (IA) of the present invention, examples of the compounds in case that they represent the formula
are shown in Table 1, examples of the of the compounds in case that they represent the formula
are shown in Table 1, examples of the compounds in case that they represent the formula
are shown in Table 3.
In Table 1, Table 2 and Table 3, Ph represents phenyl and Naph represents naphthyl.
* 1: 1H NMR(CDCl3, 300MHz)δ 1.80-1.85(4H, m), 3.54-3.58(4H, m), 4.278(2H, s), 7.082H, d, J=6.9Hz), 7.21-7.31(3H, m), 8.31, 8.31(1H, s).
* 2: 1H NMR(CDCl3, 300MHz)δ 4.34(2H, S), 4.43(4H, S), 5.76(2H, S), 7.07(2H, d), 7.21-7.31(3H, m), 8.34(1H, S).
* 3: 1H NMR(CDCl3, 300MHz)δ 1.77-1.85(4H, m), 3.51-3.56(4H, m), 4.24(2H, s), 6.76-6.93(3H, m), 7.22-7.29(1H, m), 8.30(1H, s).
* 4: 1H NMR(CDCl3, 300MHz)δ 1.83-1.87(4H, m), 3.52-3.57(4H, m), 4.24(2H, s), 6.94-7.25(4H, m), 8.32(1H, s).
* 5: 1H NMR(CDCl3, 300MHz)δ 1.59-1.65(6H, m), 3.29-3.31(4H, m), 4.12(2H, s), 7.29-7.48(4H, m), 8.46(1H, s).
First Step
To a suspension of formamidine acetate (46 g, 0.44 mol) and ethanol (300 ml), 28% methanol solution of sodium methoxide (250 g, 1.3 mol) was added under ice cooling and, after stirring the mixture for 1 hour under continuous ice cooling diethyl benzylmalonate (10 g, 0.4 mol) was added thereto. After stirring the mixture for 2 hours under ice cooling and for 19 hours at room temperature and then refluxed for 4 hours. After finishing the reaction, the precipitation, formed by adding concentrated hydrochloric acid (130 g) under ice cooling, was filtered, washed with ethanol and then with diethyl ether, and dried in a desiccator to obtain 5-benzyl-1H-purimidine-4,6-dione (145 g) which was used in the next reaction without purification.
Second Step
To 5-benzyl-1H-pyrimidine-4,6-dione (145 g), phosphorus oxychloride (300 ml) and dichloroethane (200 ml) were added and the mixture was refluxed for 3 hours. After finishing the reaction, the solvent and an excess of phosphorus oxychloride were removed under reduced pressure. After adding ice water and dichloromethane to the reaction mixture, the precipitation was removed and the filtrate was extracted with dichloromethane. The dichloromethane layer was dried with anhydrous magnesium sulfate, and filtered with a glass filter, filled with silica gel, by using ethyl acetate. The filtrate was concentrated under reduced pressure and the obtained crude product was dissolved in ethanol, to which ice water was added, and the formed precipitation was filtered, washed with water and then with diethyl ether, and dried in a desiccator to obtain 5-benzyl-4,6-dichloropyrimidine (51.8 g)
mp 91-92° C.
First Step
Ethyl 2-pyridylimidate (45 g, 0.3 mol) and ammonium chloride (19.3 g, 0.36 mol) were suspended in ethanol (150 ml) and the mixture was refluxed for 4 hours. After finishing the reaction, the reaction solution was concentrated to about ⅓ of the volume under reduced pressure. The precipitation, formed by adding diethyl ether (100 ml) thereto, was filtered, washed with diethyl ether and then with acetone, and dried in a desiccator to obtain 2-amidinopyridine hydrochloride (42.15 g).
Second Step
To a suspension of 2-amidinopyridine hydrochloride (25 g, 0.1 mol) and ethanol, 28% methanol solution of sodium methoxide (60 g, 0.31 mol) was added under ice cooling and, after stirring the mixture for 15 minutes under continuous ice cooling, diethyl benzylmalonate (100 g, 0.4 mol) was added thereto. After stirring the mixture for 1.5 hours under ice cooling and for 1 hour at room temperature, it was refluxed for 4 hours. After finishing the reaction, the precipitation, formed by adding concentrated hydrochloric acid (32 g) under ice cooling, was filtered, washed with ethanol and then with diethyl ether, and dried in a desiccator to obtain 5-benzyl-2-pyridin-2-yl-1H-pyrimidine-4,6-dione hydrochloride (38.7 g) which was used in the next reaction without purification.
Third Step
To 5-benzyl-2-pyridin-2-yl-1H-pyrimidine-4,6-dione hydrochloride (39.7 g), phosphorus oxychloride (200 ml) was added and the mixture was refluxed for 3 hours. After finishing the reaction, an excess of phosphorus oxychloride was removed under reduced pressure. After adding ice water and dichloromethane to the reaction mixture, the precipitation was removed and the filtrate was extracted with dichloromethane. The dichloromethane layer was dried with anhydrous magnesium sulfate, and filtered with a glass filter, filled with silica gel, by using ethyl acetate. The filtrate was concentrated under reduced pressure and the obtained product was dried in a desiccator to obtain 5-benzyl-4,6-dichloro-2-pyridin-2-yl-pyrimidine (15.8 g) which was used in the next reaction without purification.
mp 96-97° C.
First Step
To a suspension of thiourea (25 g, 0.1 mol) and ethanol (300 ml), 28% methanol solution of sodium methoxide (58 g, 0.3 mol) and diethyl benzylmalonate (25 g, 0.1 mol) were added under ice cooling and, after stirring for 1 hour at room temperature, the mixture was refluxed for 4 hours. After finishing the reaction, the precipitation, formed by acidifying the mixture through addition of concentrated hydrochloric acid under ice cooling, was filtered, washed with ethanol and then with diethyl ether, and dried in a desiccator to obtain 5-benzyl-2-mercaptopyrimidine-4,6-dione (23 g) which was used in the next reaction without purification.
Second Step
To a solution of 5-benzyl-2-mercaptopyrimidine-4,6-dione (23 g, 0.1 mol) in methanol (300 ml), 28% methanol solution of sodium methoxide (29 g, 0.15 mol) was added dropwise under ice cooling. Then methyl iodide (7.5 ml, 0.12 mol) was added to the mixture, which was stirred at room temperature for 1 hour. After finishing the reaction, the reaction solution was poured into ice water, acidified with hydrochloric acid, and the formed crystals were filtered and dried in a desiccator to obtain 5-benzyl-2-methylthiopyrimidine-4,6-dion (24.8 g).
Third Step
To 5-benzyl-2-methylthiopyrimidine-4,6-dione (24.8 g), phosphorusoxychloride (200 ml) was added and the mixture was refluxed for 3 hours. After finishing the reaction, an excess of phosphorus oxychloride was removed under reduced pressure. After adding ice water and dichloromethane to the reaction mixture, the precipitation was removed and the filtrate was extracted with dichloromethane. The dichloromethane layer was dried with anhydrous magnesium sulfate, and filtered with a glass filter, filled with silica gel, by using ethyl acetate. The filtrate was concentrated under reduced pressure and the obtained product was dried in a desiccator to obtain 5-benzyl-4,6-dichloro-2-methylthiopyrimidine (20.2 g) which was used in further reaction without purification.
To pyrazinecarbonitrile (11.7 g, 0.11 mol), 28% methanol solution of sodium methoxide (2.0 g, 10 mmol) was added and the mixture was refluxed for 4 hours and, after adding ammonium chloride (6.4 g, 0.12 mol), for further 6 hours. After finishing the reaction, the precipitation, formed by adding diethyl ether (50 ml) to the mixture, was filtered, washed with diethyl ether and then with acetone, and dried in a desiccator to obtain amidinopyrazine hydrochloride (17.2 g), which was used in further reaction without purification.
3-Fluorobenzyl bromide (18.9, 0.1 mol), diethyl malonate (120 ml, 0.8 mol) and potassium carbonate (30 g, 0.22 mol) were suspended in acetone (60 μl) and stirred at room temperature for 10 hours. After finishing the reaction, the precipitation was faltered and washed with acetone. The solvent and an excess of diethyl malonate were removed under reduced pressure and the residue was purified by flush column chromatography (eluent n-hexane:ethyl acetate=4:1) to obtain diethyl 3-fluorobenzylmalonate (23.6 g), which was used in further reaction without purification.
Preparation of Testing Compound
Active compound: 5 parts by weight
Organic solvent: Acetone 142.5 parts by weight
Emulsifier: Polyoxyethylene alkyl phenyl ether 7.5 parts by weight.
The above-mentioned active compound, acetone and emulsifier were mixed, diluted to a prescribed concentration with water and used for test.
Test Method
Paddy rice (variety: KOSHIHIKARI) was cultivated in a plastic pot of 4 cm diameter. At its 1.5-2 leaf stage a previously prepared diluted solution of an active compound of the prescribed concentration was sprayed in an amount of 6 ml per 3 pots. One day after spraying, a suspension of spores of artificially cultured Pyricularia oryzae was inoculated by spraying (once) and infected in keeping at 25° C. and 100% relative humidity, Seven days after the inoculation, the contraction rate per pot was classified and evaluated to obtain the controlling value (%). Phytotoxicity was also studied at the same time. This test is an average of the results of 1 section 3 pots.
Evaluation of contraction rate and calculation method of controlling value are as follows
Test Results
Compounds of the compound numbers 1-5, 1-11, 1-14, 1-15, 1-16, 1-17, 1-22, 1-33, 1-36, 1-37, 1-45, 1-56, 1-57, 1-68, 1-86, 1-87, 1-102 and 1-238 showed controlling values of more than 80% at the chemical concentration (500 ppm). No phytotoxicity was observed.
Test Method
Cucumber (variety: SAGAMI HANPAKU) was cultivated in a plastic pot of 4 cm diameter. A diluted solution of an active compound of the prescribed concentration, prepared in a similar manner as in the above-mentioned Test Example 1, was sprayed to seedlings reached to cotyledon in an amount of 6 ml per 3 pots. One day after the spraying, a suspension of spores, prepared by washing spores of Sphaerotheca fuliginea taken from previously infected cucumber into distilled water, was inoculated to the plant to be treated by spraying (once) and infected in a green house. Seven days after the inoculation, the contraction rate per pot was classified and evaluated to obtain the controlling value (%). Phytotoxicity was also studied at the same time. This test is an average of the results of 1 section 3 pots.
Evaluation of contraction rate and calculation method of controlling value are as follows
Test Results
Compounds of the compound numbers 1-5, 1-6, 1-11, 1-14, 1-15, 1-16, 1-17, 1-46, 1-56, 1-57, 1-68, 1-86 and 1-87 showed controlling values of more than 80% at the chemical concentration (500 ppm). No phytotoxicity was observed.
Test Method
Tomato (variety: REGINA) was cultivated in a plastic pot of 4 cm diameter. A diluted solution of an active compound of the prescribed concentration, prepared in a similar manner as in the above-mentioned Test Example 1, was sprayed to seedlings reached to 2-3 leaf stage in an amount of 6 ml per 3 pots. One day after the spraying, a suspension of zoosporangia, prepared by washing zoosporangia of Phytophthora infestans formed on the lesion of the previously infected tomato into distilled water by using a brush, was inoculated to the plant to be treated by spraying (once) and infected in keeping at 20° C. and 100% relative humidity. Four days after the inoculation, the contraction rate per pot was classified and evaluated to obtain the controlling value (%). Phytotoxicity was studied at the same time. This test is an average of the results of 1 section 3 pots.
Evaluation of contraction rate and calculation method of controlling value are as follows
Test Results
Compounds of the compound numbers 1-5, 1-165 and 1-238 showed controlling values of more than 80% at the chemical concentration (500 ppm). No phytotoxicity was observed.
Test Method
A nursery stock (variety: OREGON SUPER DELICIOUS) was cultivated in a plastic pot of 30 cm diameter and its leaves, which had reached at perfect extension stage, were detached from the petiole, were cultivated under hydroponic condition by using a water-holding carrier. After that, a diluted solution of an active compound of the prescribed concentration, prepared in a similar manner as in the above-mentioned Test Example 1, was sprayed to the leaves in an amount of 6 ml per 3 leaves. One day after the spraying, a suspension of spores of artificially cultured Alternaria mali was inoculated to the leaves by spraying (once) and infected by transferring them into a moisturizing box and keeping at 20° C. Four days after the inoculation, the contraction rate per pot was classified and evaluated according to the following standard and the controlling value (%) was obtained. Phytotoxicity was also studied at the same time. This test is an average of the results of 1 section 3 leaves.
Evaluation of contraction rate and calculation method of controlling value are as follows
Test Results
Compounds of the compound numbers 1-5, 1-14, 1-33, 1-36, 1-41, 1-42, 1-46, 1-56, 1-102, 1-121, 1-304, 1-311, 1-435, 1-520 and 1-523 showed controlling values of more than 80% at the chemical concentration (500 ppm). No phytotoxicity was observed.
To a mixture of the compound of the present invention No. 1-5 (10 parts), bentonite (montmorillonite) (30 parts), talc (58 parts) and ligninsulfonate salt (2 parts), water (25 parts) is added, well kneaded, made into granules of 10-40 mesh by an extrusion granulator and dried at 40-50° C. to obtain granules.
Clay mineral particles having particle size distribution in the range of 0.2-2 mm
(95 parts) are put in a rotary mixer. While rotating it, the compound of the present invention No. 1-56 (5 parts) are sprayed together with a liquid diluent, wetted uniformly and dried at 40-50° C. to obtain granules.
The compound of the present invention No. 1-57 (30 parts), xylene (55 parts), polyoxyethylene alkyl phenyl ether (8 parts) and calcium alkylbenzenesulfonate (7 parts) are mixed and stirred to obtain an emulsifiable concentrate.
The compound of the present invention No. 1-238 (15 parts), a mixture of white carbon (hydrous amorphous silicon oxide fine powder) and powder clay (1:5) (80 parts), sodium alkylbenzenesulfonate (2 parts) and sodium alkylnaphthalenesulfonate-formalin-condensate (3 parts) are crushed and mixed to make a wettable powder.
The compound of the present invention No. 1-14 (20 parts), sodium ligninsulfonate (30 parts), bentonite (15 parts) and calcined diatomaceous earth powder (35 parts) are well mixed, added with water, extruded with 0.3 mm screen and dried to obtain water dispersible granules.
Number | Date | Country | Kind |
---|---|---|---|
2004-043405 | Feb 2004 | JP | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/EP05/01383 | 2/11/2005 | WO | 11/14/2006 |