Palladium catalysts containing sulfonated bisphosphines as ligands, process for their preparation and their use in carbonylation reactions

US5631393A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Christian Kohlpaintner · Kelkheim, DE
• Matthias Beller · Ostseebad Nienhagen, DE

Key dates

• Filing date: May 2, 1995
• Grant date: May 20, 1997
• Expiry date: May 2, 2015

Classification

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

Abstract

The invention relates to palladium compounds containing as ligands compounds of the formula (I) ##STR1## where Ar is C.sub.6 H.sub.4 SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal or one equivalent of a polyvalent metal and Ph is the phenyl radical and n, m are zero, 1 or 2 and x, y, u, v are zero, 1 or 2.