Homogeneous process for carrying out cross-coupling reactions

US5756804A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Steffen Haber · Landau, DE
• Hans-Jerg Kleiner · Kronberg, DE

Key dates

• Filing date: Jul 24, 1996
• Grant date: May 26, 1998
• Expiry date: Jul 24, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/847
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing polycyclic aromatic compounds, which comprises reacting PA1 a) an aromatic boron compound with PA1 b) an aromatic halogen compound or an aromatic perfluoroalkylsulfonate in the presence of PA1 c) a base, PA1 d) a nickel or palladium catalyst, PA1 e) a phosphorus-containing ligand and PA1 f) a polyhydric alcohol, a sulfoxide or sulfone. The process gives high yields, in particular also in the coupling of chloroaromatics.