Diastereomeric salts of malic acid and 2-aminobutanol, and process for the resolution of rademis maic acid

US4330484A · kind A · utility

Assignee

• BASF SE

Inventors

• Wilfried Berning · Worms, DE
• Hardo Siegel · Speyer, DE

Key dates

• Filing date: Jul 7, 1980
• Grant date: May 18, 1982
• Expiry date: Jul 7, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/487
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Racemic malic acid can be fractionally crystallized, as a diastereomeric salt pair, from alcoholic solution or aqueous-alcoholic solution by using an optical antipode of 2-amino-butan-1-ol.