Method for producing thioctic acid

US7208609B2 · kind B2 · utility

Assignee

• MEDA PHARMA GMBH & CO. KG · DE

Inventors

• Gunter Laban · Dresden, DE
• Peter Meisel · Dresden, DE
• Gilbert Muller · Offenbach, DE

Key dates

• Filing date: Jan 7, 2003
• Grant date: Apr 24, 2007
• Expiry date: Sep 24, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D339/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing pure racemic, R- or S-thioctic acid or mixtures thereof by reacting 6,8-disubstituted octanoic acid or their salts or esters with sulfides, sulfur or sulfites.