Method for racemate splitting of 2-hydroxypropionic acids

US6559338B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Harald Bernard · Bad Dürkheim, DE
• Hartmut Riechers · Neustadt, DE

Key dates

• Filing date: Apr 25, 2001
• Grant date: May 6, 2003
• Expiry date: Apr 25, 2021

Classification

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

Abstract

A process for racemate resolution of 2-hydroxypropionic acids by reacting the racemic acid with an optically active base and subsequently separating off a diastereomeric salt of acid and base comprises using 1-(4-chlorophenyl)ethylamine as optically active base.