Preparation of butenediol diacetates and of butanediol

US4262139A · kind A · utility

Assignee

• BASF SE

Inventors

• Juergen Hartig
• Hans-Martin Weitz · Bad Dürkheim, DE
• Rolf Schnabel · Schifferstadt, DE

Key dates

• Filing date: Oct 22, 1979
• Grant date: Apr 14, 1981
• Expiry date: Oct 22, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/055
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of butenediol diacetate by reacting butadiene with oxygen and acetic acid or with a compound which liberates acetic acid under the reaction conditions, over a solid catalyst which contains a platinum metal and one or more elements of main group 5 or 6, in the presence of butanediol diacetate, butanediol monoacetate, butanediol or a mixture of these, and the use of the butenediol diacetate, thus obtained, to prepare butane-1,4-diol by hydrogenating and then hydrolyzing the diacetate.