METHOD FOR PRODUCING DIFLUOROACETIC ACID ESTER

摘要

A difluoroacetic acid ester is obtained by reacting 1-alkoxy-1,1,2,2-tetrafluoroethane represented by the following formula: HCF₂CF₂OR¹ (wherein R¹ represents a straight or branched chain alkyl group having 1-20 carbon atoms) with an alcohol having 1-20 carbon atoms and a metal hydroxide or a metal alkoxide for obtaining a difluoroacetic acid metal salt, and then reacting the thus-obtained difluoroacetic acid metal salt with an alcohol having 1-10 carbon atoms in the presence of an acid. This method enables to commercially produce a difluoroacetic acid ester easily by a shorter process when compared with conventional methods. [Chemical formula 5] HCF₂CF₂OR¹