Fluorinated pyrazolecarbonitrile derivative and a method for producing the same, and fluorine-containing pyrazolecarbonitrile derivative fluorinated pyrazole carboxylic acid derivative and a production method thereof obtained using the.

Fluorinated pyrazole carbonitrile derivatives and their preparation, as well as fluorine-containing pyrazole carboxylic acid derivative and a production method thereof obtained using the fluorine-containing pyrazole carbonitrile derivatives. A fluorinated acyl derivative with an amino acrylonitrile derivative after preparation of fluorinated acyl acrylonitrile derivative, by reaction with a hydrazine derivative represented by the following general formula (1) [Formula 1] (Wherein, Rf represents at least one alkyl group having 1 to 6 carbon atoms by fluorine atoms is substituted, R1 represents an such as an alkyl group having 1 to 6 carbon atoms, R2 is a hydrogen atom, C 1 -C producing a fluorine-containing pyrazole carbonitrile derivative represented by the representative.) the 6 alkyl group. Further, by reacting the compound with water represented by the general formula (1), to produce a fluorine-containing pyrazole carboxylic acid derivatives.