Process for the preparation of 1,2,4-triazole

US4267346A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reinhard Kaiser · Cologne, DE
• Guido Steffan · Odenthal, DE

Key dates

• Filing date: Jan 2, 1979
• Grant date: May 12, 1981
• Expiry date: Jan 2, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D249/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing 1,2,4-triazole which comprises contacting hydrazine with formamide in the molar ratio of 1:2.0-2.7 at a temperature from 100.degree. to 250.degree. C. in the presence of ammonia.