OPTICAL INTERCONVERSION OF ENANTIOMERIC SECONDARY ALCOHOLS USING 2-FLUOROBENZOTHIAZOLIUM SALT

Abstract

A convenient method for optical interconversion of enantiomeric secondary alcohols was established according to the following procedures: treatment of optically active 2-alkyloxybenzothiazolium salt , formed in situ from 2-fluoro salt I and optically active secondary alcohols, with trichloroacetic acid to give the corresponding esters with inversion of configuration, and facile hydrolysis of the esters to alcohols with retention.