Process for the manufacture of 2,3-dimethylpentanal

US4205013A · kind A · utility

Assignee

• Ruhrchemie Aktiengesellschaft · DE

Inventors

• Jurgen Weber · Oberhausen, DE
• Helmut Springer · Dinslaken, DE

Key dates

• Filing date: Mar 28, 1978
• Grant date: May 27, 1980
• Expiry date: Mar 28, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of 2,3-dimethylpentanal which comprises contacting 3-methyl-2-pentene with carbon monoxide and hydrogen in the presence of a rhodium carbonyl compound as catalyst. Rhodium carbonyl catalysts are those which contain only rhodium and carbon monoxide and in certain cases, also hydrogen. Especially contemplated are non-phosphine containing rhodium carbonyl catalysts.