COMMERCIAL PROCESS FOR THE SYNTHESIS OF CYCLOPROPYL KETO α,α-DIMETHYLPHENYL ACETIC ACID-AN USEFUL INTERMEDIATE FOR THE PREPARATION OF FEXOFENADINE

摘要

The present invention provides a process for the preparation of cyclopropyl keto a, a dimethylphenyl acetic acid, an useful intermediate for the preparation of fexofenadine in the presence of water without use of any solvent during oxidation.