摘要:
It is an object of the invention to provide a novel fungicide which exhibits a wide controlling spectrum against pathogens of various crops, and solves the toleration problem. The diamine derivative represented by the formula (1) and a process for preparation of the same, fungicides comprising the same as an active ingredient are disclosed: [wherein R1 is substituents such as an alkyl group having 1 to 6 carbon atoms and the like, R2 and R5 are each independently substituents such as hydrogen atom, an alkyl group having 1 to 6 carbon atoms and the like, R3 and R4 are each independently substituents such as hydrogen atom, an alkyl group having 1 to 6 carbon atoms and the like, or R3 and R4 may be bonded to each other to form a hydrocarbon ring having 3 to 6 carbon atoms, R6, R7, R8 and R9 are each independently substituents such as hydrogen atom, an alkyl group having 1 to 6 carbon atoms and the like, R10 is a substituent such as hydrogen atom, an alkyl group having 1 to 6 carbon atoms and the like, A is an oxygen atom or a sulfur atom, and Q is an aryl group or a heterocycle].
摘要:
The present invention provides a method of producing a 2-alkyl-3-aminothiophene derivative represented by formula (2) by reducing at least one of the 2-alkenyl-3-aminothiophene derivatives represented by formulae (1a) to (1d), or a mixture thereof, or a salt thereof, without using a protecting group for an amino group: wherein in formulae (1a) to (1d), R1 to R4 each independently represents a hydrogen atom, an alkyl group of 1 to 12 carbon atoms or the like; and R5 and R6 each independently represents a hydrogen atom, a halogen atom, an alkyl group of 1 to 12 carbon atoms or the like. According to the invention, a 2-alkyl-3-aminothiophene derivative usable as an intermediate of agricultural chemicals can be produced by a cost-efficient industrial process, without the use of a high-cost protective group for an amino group.
摘要翻译:本发明提供通过还原由式(1a)〜(1d)表示的2-烯基-3-氨基噻吩衍生物中的至少一种或式(1a)〜(1d)所示的2-烷基-3-氨基噻吩衍生物,或 其混合物或其盐,不使用氨基的保护基团:其中在式(1a)至(1d)中,R 1至R 4各自独立地表示氢原子,1至12个碳原子的烷基或 类似; R 5和R 6各自独立地表示氢原子,卤素原子,碳原子数1〜12的烷基等。 根据本发明,可以通过成本效益高的工业过程制造可用作农药中间体的2-烷基-3-氨基噻吩衍生物,而不使用高成本的氨基保护基。
摘要:
Disclosed is an improved process for producing nitroisourea derivatives which is necessary for producing nitroguanidine derivatives having an insecticidal activity. Specifically disclosed is a process for producing nitroisourea derivatives represented by the following general formula (3), which is characterized in that nitroisourea derivatives represented by the following general formula (1) and amines represented by the following general formula (2) or a salt thereof are reacted in the presence of a catalytic amount of a hydrogen carbonate,
摘要:
Disclosed is an improved process for producing nitroisourea derivatives which is necessary for producing nitroguanidine derivatives having an insecticidal activity. Specifically disclosed is a process for producing nitroisourea derivatives represented by the following general formula (3), which is characterized in that nitroisourea derivatives represented by the following general formula (1) and amines represented by the following general formula (2) or a salt thereof are reacted in the presence of a catalytic amount of a hydrogen carbonate,
摘要:
Disclosed is an improved process for producing nitroguanidine derivatives represented by the formula (3), which has an insecticidal activity, or a salt thereof, wherein the substituents are defined herein, in which nitroisourea derivatives represented by the following general formula (1) or a salt thereof wherein the substituents are defined herein, and compounds represented by the following general formula (2) or a salt thereof, wherein the substituents are defined herein, are reacted in the presence of a base in an aqueous solution wherein an inorganic salt is dissolved at not less than 50% of its saturated solubility.
摘要:
Disclosed is an improved process for producing nitroguanidine derivatives represented by the following general formula (3), which has an insecticidal activity, or a salt thereof. Specifically, disclosed is a process for producing nitroguanidine derivatives represented by the following general formula (3) or a salt thereof, in which nitroisourea derivatives represented by the following general formula (1) or a salt thereof and compounds represented by the following general formula (2) or a salt thereof are reacted in the presence of a base in an aqueous solution wherein an inorganic salt is dissolved at not less than 50% of its saturated solubility, wherein, in the formula, R1 represents an alkyl group having 1 to 4 carbon atoms or a benzyl group; R2 represents an alkyl group having 1 to 4 carbon atoms; and R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, wherein, in the formula, R4, R5 and R6 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and Q represents a 5- or 6-membered heterocyclic group which contains at least one each of a nitrogen atom, an oxygen atom and a sulfur atom and may be substituted with a halogen atom, wherein, in the formula, R2 represents an alkyl group having 1 to 4 carbon atoms; R3, R4, R5 and R6 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and Q represents a 5- or 6-membered heterocyclic group which contains at least one each of a nitrogen atom, an oxygen atom and a sulfur atom and may be substituted with a halogen atom.