Process for the preparation of optically pure isomers of 2-(4-hydroxy phenoxy)-2-methyl-butyric acid methyl ester

摘要

The invention provides a process for preparing R-(+)-2-(4-hydroxyphenoxy)-2-methyl-butyric acid methyl ester of the formula (1): Various embodiments and variants are provided. The invention also provides a process for preparing S-(-)-2-(4-hydroxyphenoxy)-2-methyl-butyric acid methyl ester of the formula (II) Various embodiments and variants are provided.