Process for the production of caboxylic acid cyanides

US4339591A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Axel Kleemann · Hanau, DE
• Bernd Lehmann · Cologne, DE
• Herbert Klenk · Hanau, DE

Key dates

• Filing date: Mar 23, 1981
• Grant date: Jul 13, 1982
• Expiry date: Mar 23, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

There are produced carboxylic acid cyanides, e.g., acyl cyanides by reacting a carboxylic acid halide with an alkali cyanide or hydrogen cyanide in the presence of a copper (I) salt and a carboxylic acid nitrile. Especially advantageous are glutaric acid dinitrile and 2-methyl glutaric acid dinitrile.