Process for preparing tetramethyl glycolide

US7928251B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Bernd Vogel · Wiesbaden, DE
• Alexander May · Seeheim-Jugenheim, DE
• Hermann Siegert · Weiterstadt, DE

Key dates

• Filing date: Aug 30, 2007
• Grant date: Apr 19, 2011
• Expiry date: Aug 30, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D319/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing tetramethylglycolide by heating a composition which comprises at least 50% by weight of 2-hydroxy-isobutyric acid and/or tetramethylglycolide to a temperature of at least 100° C.