método para produzir derivado de ácido acilacético contendo flúor, método para produzir derivado de éster de ácido pirazolcarboxílico contendo flúor e método para produzir derivado de ácido pirazolcarboxílixo contendo flúor

摘要

A halogenating agent is added to a mixture including a base, a fluoroalkylcarboxylic acid derivative and an acrylate derivative to produce a fluoroaclyacetic acid derivative represented by the following Formula (3):
wherein Rf represents a fluorine containing alkyl group, R1 and R2 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an arylalkyl grou p or an acyl group, or together represent an atomic group that forms a 5- or 6-memb ered ring containing a nitrogen atom to which R1 and R2 are bonded; R3 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, or an arylalkyl g roup; and R4 represents an alkyl group, a cycloalkyl group, an aryl group, or an aryl alkyl group.