Resolution of p-hydroxyphenyl-2-alkoxypropionic acids

US7427691B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Dieter Most · Bruchköbel, DE
• Kai Rossen · Hanau, DE
• Michael Schwarm · Alzenau, DE

Key dates

• Filing date: Jul 6, 2005
• Grant date: Sep 23, 2008
• Expiry date: Jul 13, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C59/64
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention is aimed at a process for the preparation of enantiomerically enriched compounds of general formula (I). These are obtained by classical resolution of the corresponding acid using a chiral amino base in organic solvents.