Manufacture of 1,6-hexanediol from butadiene

US3947503A · kind A · utility

Assignee

• BASF SE

Inventor

• Rudolf Kummer · Bischofswerda, DE

Key dates

• Filing date: Mar 7, 1975
• Grant date: Mar 30, 1976
• Expiry date: Mar 7, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C41/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

1,6-Hexanediol is manufactured by hydroformylation of 1,3-butadiene by a process wherein an acetal of pent-3-en-1-al is formed in a first hydroformylation step in the presence of lower alkanols or alkanediols and of rhodium catalysts, and is then converted into 1,6-hexanediol in a second hydroformylation step in the presence of cobalt catalysts, followed by hydrogenation.