| 摘要 |
A method for producing a 1-substituted-3-fluoroalkylpyrazole-4-carboxylic acid ester comprising a step of adding, over 0.5 to 30 hours, a second reaction liquid including an acyl acetic acid ester derivative and a second organic solvent to a first reaction liquid including an alkyl hydrazine and a first organic solvent, and stirring in the absence of a base and an acid and reacting the liquids at a reaction temperature of -5 to 80°C, wherein the first organic solvent and the second organic solvent are each at least one of a benzene, a toluene, a xylene, a chlorobenzene, a dichlorobenzene, an ethyl acetate, a butyl acetate and a dimethyl carbonate, the total mass of the first organic solvent and the second organic solvent is 1 to 60 times the mass of the acyl acetic acid ester derivative, and the amount of the first organic solvent in the total of the first organic solvent and the second organic solvent is 40 to 95 mass%. |
