摘要:
A process for preparing substituted biphenyls of the formula I in which the substituents are defined as follows: X is fluorine or chlorine; R1 is nitro, amino or NHR3; R2 is cyano, nitro, halogen, C1-C6-alkyl, C1-C-6-alkenyl, C1-C6-alkynyl, C1-C6-alkoxy, C1-C6-haloalkyl, C1-C6-alkylcarbonyl or phenyl; R3 is C1-C4-alkyl, C1-C4-alkenyl or C1-C4-alkynyl; n is 1, 2 or 3, where in case that n is 2 or 3, the R.sup.2 radicals may also be different, which comprises reacting the compound of the formula II in which Hal is halogen and X and R1 are as defined above, in the presence of a base and of a palladium catalyst selected from the group of:3 a) palladium-triarylphosphine or -trialkylphosphine complex with palladium in the zero oxidation state, b) salt of palladium in the presence of triarylphospine or trialkylphosphine as a complex ligand or c) metallic palladium, optionally applied to support, in the presence of triarylphosphine or trialkylphosphine, in a solvent, with a diphenylborinic acid (III) in which R2 and n are as defined above, where the triarylphosphines or trialkylphosphines used may be substituted.
摘要:
The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylates of the formula I in which R1 is C1-C8-alkyl, C3-C8-cycloalkyl, C1-C4-alkoxy-C1-C4-alkyl, etc.; and R2 is hydrogen, C1-C4-alkyl, benzyl or phenyl, wherein a) a compound of the general formula II in which X is fluorine, chlorine or bromine, R1 has one of the meanings given above and R4 is C1-C8-alkyl, C3-C8-cycloalkyl, C2-C8-alkenyl, benzyl or phenyl, is reacted with a silane compound of the general formula R3nSiCl(4-n) in which n is 1, 2 or 3 and the substituents R3 are independently of one another selected from the group consisting of C1-C8-alkyl and phenyl and with a metal selected from the metals of groups 1, 2, 3, 4 and 12 of the Periodic Table of the Elements having a redox potential of less than −0.7 V, based on a normal hydrogen electrode (at 25° C. and 101.325 kPa); and b) the reaction mixture from step a) is reacted with a compound of the general formula III R2HN—NH2 (III) in which R2 has one of the meanings given above.
摘要:
The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylates of the formula I in which R1 is C1-C8-alkyl, C3-C8-cycloalkyl, C1-C4-alkoxy-C1-C4-alkyl, etc.; and R2 is hydrogen, C1-C4-alkyl, benzyl or phenyl, wherein a) a compound of the general formula II in which X is fluorine, chlorine or bromine, R1 has one of the meanings given above and R4 is C1-C8-alkyl, C3-C8-cycloalkyl, C2-C8-alkenyl, benzyl or phenyl, is reacted with a silane compound of the general formula R3nSiCl(4-n) in which n is 1, 2 or 3 and the substituents R3 are independently of one another selected from the group consisting of C1-C8-alkyl and phenyl and with a metal selected from the metals of groups 1, 2, 3, 4 and 12 of the Periodic Table of the Elements having a redox potential of less than −0.7 V, based on a normal hydrogen electrode (at 25° C. and 101.325 kPa); and b) the reaction mixture from step a) is reacted with a compound of the general formula III R2HN—NH2 (III) in which R2 has one of the meanings given above.
摘要:
A process for preparing substituted biphenyls of the formula I in which the substituents are defined as follows: X is fluorine or chlorine; R1 is nitro, amino or NHR3; R2 is cyano, nitro, halogen, C1-C6-alkyl, C1-C6-alkenyl, C1-C6-alkynyl, C1-C6-alkoxy, C1-C6-haloalkyl, C1-C6-alkylcarbonyl or phenyl; R3 is C1-C4-alkyl, C1-C4-alkenyl or C1-C4-alkynyl; n is 1, 2 or 3, where in case that n is 2 or 3, the R2 radicals may also be different, which comprises reacting the compound of the formula II in which Hal is halogen and X and R1 are as defined above, in the presence of a base and of a palladium catalyst selected from the group of: a) palladium-triarylphosphine or -trialkylphosphine complex with palladium in the zero oxidation state, b) salt of palladium in the presence of triarylphospine or trialkylphosphine as a complex ligand or c) metallic palladium, optionally applied to support, in the presence of triarylphosphine or trialkylphosphine, in a solvent, with a diphenylborinic acid (III) in which R2 and n are as defined above, where the triarylphosphines or trialkylphosphines used may be substituted.
摘要:
A process for preparing substituted biphenyls of the formula I in which the substituents are defined as follows: X is fluorine or chlorine; R1 is nitro, amino or NHR3; R2 is cyano, nitro, halogen, C1-C6-alkyl, C1-C-6-alkenyl, C1-C6-alkynyl, C1-C6-alkoxy, C1-C6-haloalkyl, C1-C6-alkylcarbonyl or phenyl; R3 is C1-C4-alkyl, C1-C4-alkenyl or C1-C4-alkynyl; n is 1, 2 or 3, where in case that n is 2 or 3, the R.sup.2 radicals may also be different, which comprises reacting the compound of the formula II in which Hal is halogen and X and R1 are as defined above, in the presence of a base and of a palladium catalyst selected from the group of:3 a) palladium-triarylphosphine or -trialkylphosphine complex with palladium in the zero oxidation state, b) salt of palladium in the presence of triarylphospine or trialkylphosphine as a complex ligand or c) metallic palladium, optionally applied to support, in the presence of triarylphosphine or trialkylphosphine, in a solvent, with a diphenylborinic acid (III) in which R2 and n are as defined above, where the triarylphosphines or trialkylphosphines used may be substituted.
摘要:
A process for preparing substituted biphenyls of the formula I in which the substituents are defined as follows: X is fluorine or chlorine; R1 is nitro, amino or NHR3; R2 is cyano, nitro, halogen, C1-C6-alkyl, C1-C6-alkenyl, C1-C6-alkynyl, C1-C6-alkoxy, C1-C6-haloalkyl, C1-C6-alkylcarbonyl or phenyl; R3 is C1-C4-alkyl, C1-C4-alkenyl or C1-C4-alkynyl; n is 1, 2 or 3, where in case that n is 2 or 3, the R2 radicals may also be different, which comprises reacting the compound of the formula II in which Hal is halogen and X and R1 are as defined above, in the presence of a base and of a palladium catalyst selected from the group of: a) palladium-triarylphosphine or -trialkylphosphine complex with palladium in the zero oxidation state, b) salt of palladium in the presence of triarylphospine or trialkylphosphine as a complex ligand or c) metallic palladium, optionally applied to support, in the presence of triarylphosphine or trialkylphosphine, in a solvent, with a diphenylborinic acid (III) in which R2 and n are as defined above, where the triarylphosphines or trialkylphosphines used may be substituted.
摘要:
The present invention relates to a process for preparing 3-difluoromethyl-substituted pyrazole compounds of the formula (I) in which R1 is H, halogen, nitro, C1-C8-alkyl, C1-C8-haloalkyl, C3-C8-cycloalkyl, phenyl, naphthyl, hetaryl, cyano, —C(═O)—OR1a, —C(═O)—NR1bR1c, —C(═O)—SR1d or —C(═S)—SR1e; R2 is H, C1-C4-alkyl, benzyl or phenyl; R3 is H, halogen, C1-C8-alkoxy, C1-C8-haloalkoxy, C3-C8-cycloalkoxy, C2-C8-alkenyloxy, C1-C8-alkylthio, C1-C8-haloalkylthio, C3-C8-cyclo-alkylthio or C2-C8-alkenylthio; compounds of the formula (II.a) or (II.b), in which R1 and R3 each have one of the definitions given above; R4 is halogen, —OR4a, —SR4a, —O—SO2—R4a or an —NR4bR4c group; R5 and R6 are each C1-C8-alkyl, C1-C8-haloalkyl, C3-C8-cycloalkyl, benzyl or phenyl, or, together with the nitrogen atom to which they are bonded, are a 3- to 8-membered heterocycle; Lewis acid adducts of compounds of the formula (II.b); the use of compounds of the formula (II.a) or (II.b) and of the Lewis acid adducts for preparing compounds of the formula (I) or (VI); and to a process for converting such compounds to the corresponding 3-difluoro-pyrazol-4-ylcarboxylic acids.
摘要:
The present invention relates to a process for preparing 3-difluoromethyl-Substituted pyrazole compounds of the formula (I) in which R1 is H, halogen, nitro, C1-C8-alkyl, C1-C8-haloalkyl, C3-C8-cycloalkyl, phenyl, naphthyl, hetaryl, cyano, —C(═O)—OR1a, —C(═O)—NR1bR1c, —C(═O)—SR1d or —C(═S)—SR1e; R2 is H, C1-C4-alkyl, benzyl or phenyl; R3 is H, halogen, C1-C8-alkoxy, C1-C8-haloalkoxy, C3-C8-cycloalkoxy, C2-C8-alkenyloxy, C1-C8-alkylthio, C1-C8-haloalkylthio, C3-C8-cyclo-alkylthio or C2-C8-alkenylthio; compounds of the formula (II.a) or (II.b), in which R1 and R3 each have one of the definitions given above; R4 is halogen, —OR4a, —SR4a, —O—SO2—R4a or an —NR4bR4c group; R5 and R6 are each C1-C8-alkyl, C1-C8-haloalkyl, C3-C8-cycloalkyl, benzyl or phenyl, or, together with the nitrogen atom to which they are bonded, are a 3- to 8-membered heterocycle; Lewis acid adducts of compounds of the formula (II.b); the use of compounds of the formula (II.a) or (II.b) and of the Lewis acid adducts for preparing compounds of the formula (I) or (VI); and to a process for converting such compounds to the corresponding 3-difluoro-pyrazol-4-ylcarboxylic acids.
摘要:
The present invention relates to a new process for the preparation of substituted thiotriazolo groups of the general formula (I) wherein the variables have the meanings as given in the claims and the description.
摘要:
The present invention relates to substituted 1-{2-[2-halo-4-(4-halogen-phenoxy)-phenyl]-2-alkoxy-3-methyl-butyl}-1H-[1,2,4]triazole compounds of formula I as defined in the description, and the N-oxides, and salts thereof, processes and intermediates for preparing these compounds and also to compositions comprising at least one such compound. The invention also relates to the use of such compounds and compositions for combating harmful fungi and seed coated with at least one such compound.