Preparation of 1-substituted imidazoles

US4450277A · kind A · utility

Assignee

• BASF SE

Inventors

• Fritz Graf · Speyer, DE
• Leopold Hupfer · Friedelsheim, DE

Key dates

• Filing date: Sep 25, 1980
• Grant date: May 22, 1984
• Expiry date: Sep 25, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D233/56
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of 1-substituted imidazoles by reacting an .alpha.-dicarbonyl compound with ammonia, an aldehyde and a primary amine in an aqueous medium, in a single stage, at 20.degree.-150.degree. C.