Process for preparation of 2-vinylpyridine from acetylene and acrylonitrile

US4267329A · kind A · utility

Assignee

• Studiengesellschaft Kohle gGmbH · DE

Inventors

• Helmut Bonnemann · Neheim, DE
• Marc Samson · Lokeren, BE

Key dates

• Filing date: Jun 2, 1980
• Grant date: May 12, 1981
• Expiry date: Jun 2, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F15/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process is described for the catalytic, selective preparation of 2-vinylpyridine from acetylene and acrylonitrile using a cyclopentadienylcobalt catalyst or .pi.-allylcobalt catalyst at elevated temperature in an inert solvent, wherein the acrylonitrile concentration is up to 2 mols/liter and the reaction is carried out at a temperature over 140.degree. C. and up to 180.degree. C., the reaction time being not more than 50 minutes.