Method for producing a fluorinated acyl acid derivatives, method for producing a preparation and a fluorine-containing pyrazolecarboxylic acid derivative of the fluorine-containing pyrazolecarboxylic acid ester derivative

摘要

By the mixture comprising a base and an acrylic acid ester derivative and a fluorine-containing alkyl carboxylic acid derivative, adding a halogenating agent represented by the following general formula (3) [Formula 1] (Wherein, Rf represents a fluorine-containing alkyl group, the nitrogen atom to which they are attached to the R2 and R2 R1, or an acyl group, a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, or an arylalkyl group, and R1 represents an atomic group necessary to form a 5-or 6-membered ring containing, R3 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an arylalkyl group, an alkyl group, a cycloalkyl group, R4 is aryl I to produce a fluorine-containing acylacetic acid derivative represented by the.) an aryl group or an alkyl group.