Process for the preparation of oxamide

US3989753A · kind A · utility

Inventors

• Wilhelm Riemenschneider · Frankfurt am Main, DE
• Peter Wegener · Königstein, DE

Key dates

• Filing date: Feb 21, 1974
• Grant date: Nov 2, 1976
• Expiry date: Feb 21, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C233/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

By contacting hydrogen cyanide with oxygen or air and a catalyst solution containing water, low molecular weight aliphatic carboxylic acids, copper ions and nitrate ions oxalic acid diamide is formed in high yields.