Process for the manufacture of butynediol

US3957888A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Reiss · Ludwigshafen, DE
• Rudolf Schnur
• Siegfried Winderl
• Herwig Hoffmann · Bischofswerda, DE
• Peter Zehner · Ludwigshafen, DE

Key dates

• Filing date: Apr 18, 1975
• Grant date: May 18, 1976
• Expiry date: Apr 18, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C33/046
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for the manufacture of butynediol-1,4 from acetylene and formaldehyde in aqueous solution in contact with a copper acetylide catalyst in the absence of a gas phase.