Process for preparing pentenals

US5684208A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Helmut Bahrmann · Hamminkeln, DE
• Peter Lappe · Dinslaken, DE
• Ernst Wiebus · Oberhausen, DE
• Bernhard Fell · Aachen, DE
• Peter Hermanns · Aachen, DE

Key dates

• Filing date: Aug 15, 1996
• Grant date: Nov 4, 1997
• Expiry date: Aug 15, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2540/32
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In the process for hydroformylation of 1,3-butadiene with carbon monoxide and hydrogen to form pentenals, the improvement comprising effecting the hydroformylation with 1,3-butadiene dissolved in an inert reaction medium at 100.degree. to 180.degree. C. at 5 to 35 MPa in the presence of an aqueous solution of a rhodium/phosphine complex and optionally a further phosphine as catalyst.