PREPARATION OF OPTICAL ACTIVE 22*SUBSTITUTED PHENYL**33METHYLLBUTYRIC ACID CHLORIDE

摘要

PURPOSE:To obtain the title high-purity compound which is an intermediate for insecticides, in a high yield and with an optical purity, by chlorinating an optical active 2-(substituted phenyl)3-methylbutyric acid with a chlorinating agent at a temperature of 80 deg.C or below, using a nitrogen base as a catalyst.