Process for the preparation of 4-chlorobiphenyls

US6066766A · kind A · utility

Assignee

• Clariant Corporation · DE

Inventors

• Steffen Haber · Landau, DE
• Stefan Scherer · Büttelborn, DE
• Andreas Meudt · Hofheim, DE
• Antje Noerenberg · Büttelborn, DE

Key dates

• Filing date: Aug 3, 1999
• Grant date: May 23, 2000
• Expiry date: Aug 3, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/2632
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

4-Chlorobiphenyls are prepared by reacting a haloaromatic with an aryl Grignard compound, where halogen is chlorine, bromine or iodine, in the presence of a palladium catalyst of the formula (IV) ##STR1##