Preparation of D- or L-alanine or high enantiomeric purity

US4962231A · kind A · utility

Assignee

• BASF SE

Inventors

• Axel Paul · Lampertheim, DE
• Peter Tonne
• Eckhard Roske · Ludwigshafen, DE
• Hardo Siegel · Speyer, DE

Key dates

• Filing date: Jun 10, 1988
• Grant date: Oct 9, 1990
• Expiry date: Jun 10, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/07
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A pure D- or L-alanine enantiomer is prepared by reacting an optically active chloropropionic acid with ammonia in water or a water/alcohol mixture at from 50.degree. to 110.degree. C.