Process for preparing biaryls in the presence of palladophosphacyclobutane catalysts

US6392047B1 · kind B1 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Holger Geissler · Mainz, DE
• Steffen Haber · Landau, DE
• Andreas Meudt · Hofheim, DE
• Frank Vollmueller · Mainz, DE
• Stefan Scherer · Büttelborn, DE

Key dates

• Filing date: Jul 13, 2000
• Grant date: May 21, 2002
• Expiry date: Jul 13, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/824
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Biaryls, e,g,. biphenyls, phenylpyridines, phenylfurans, phenylpyrroles, phenylthiophenes, bipyridines, pyridylfurans or pyridylpyrroles are prepared in high yields by coupling aromatics with an aromatic boric acid or boric ester in the presence of a palladaphosphacyclobutane catalyst.