Process for the preparation of D(+)-2-(4-acetylphenoxy)-propionic esters

US4978774A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gunter Schlegel · Liederbach, DE
• Hilmar Mildenberger · Kelkheim, DE

Key dates

• Filing date: Jan 25, 1990
• Grant date: Dec 18, 1990
• Expiry date: Jan 25, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C69/712
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for the preparation of D(+)-2-(4-acetylphenoxy)-propionic esters Preparation of D(+)-2-(4-acetylphenoxy)-propionic esters of the formula ##STR1## by reacting 4-hydroxyacetophenone with L-halo- or sulfonyloxy-lactic esters in a basic medium at temperatures .ltoreq.50.degree. C.