Method for producing alpha-hydroxy carboxylic esters in the gas phase

US9809530B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Steffen Krill · Mühltal, DE
• Belaid Ait Aissa · Darmstadt, DE
• Alexander May · Seeheim-Jugenheim, DE
• Matthias Groemping · Darmstadt, DE

Key dates

• Filing date: Jul 23, 2015
• Grant date: Nov 7, 2017
• Expiry date: Jul 23, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01C3/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing alpha-hydroxycarboxylic esters from the alcoholysis of alpha-hydroxycarboxamides in the gas phase, characterized in that the conversion is effected in the presence of water.