Process for the preparation of cyclopropanecarboxamide

US5068428A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Diehl · Leverkusen, DE
• Heinz U. Blank · Odenthal, DE
• Edwin Ritzer · Leverkusen, DE

Key dates

• Filing date: Sep 26, 1990
• Grant date: Nov 26, 1991
• Expiry date: Sep 26, 2010

Classification

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

Abstract

Cyclopropanecarboxamide can be prepared by reaction of a cyclopropanecarboxylic ester with NH.sub.3, in which the ester alcohol has 4-8 C atoms and can be straight-chain or branched and which process is carried out in the presence of catalytic amounts of an alkali metal alcoholate of a monohydric C.sub.1-C.sub.8 alcohol at 60.degree.-200.degree. C. in the absence of a hydrocarbon solvent.