Process for the preparation of 2-alkyl-1,4-butanedial

US4675451A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Juan Andrade · Ridgewood, US
• Guenter Prescher · Hanau, DE
• Marc Samson · Lokeren, BE

Key dates

• Filing date: Feb 12, 1986
• Grant date: Jun 23, 1987
• Expiry date: Feb 12, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/515
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process is disclosed for the preparation of 2-alkyl-1,4-butanedial by hydroformylation of acetals of a 2-alkyl-substituted-1-propenal in the presence of a complex rhodium catalyst. The 3-alkyl-4,4-dialkoxybutanal obtained in this manner is separated and hydrolyzed to the desired compound.