PROCESS FOR THE SYNTHESIS OF ESTERS OF PARACHLOROBENZOYL-PHENOXY-ISOBUTYRIC ACID

摘要

1. A process for manufacturing methyl ester of 4-(parachlorobenzoyl)-phenoxyisobutyric acid, characterized in that a so-called PERKIN reaction is carried out between parachlorobenzoic anhydride and the methyl ester of phenoxyisobutyric acid, said reaction being carried out within a solvent using BF3 as a catalyst and by operating at a temperature close to ambiant temperature.