Process for preparing tertiary phosphines containing phosphinate or phosphonate groups, and novel tertiary phosphines containing phosphinate groups

US5801263A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

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

Key dates

• Filing date: May 15, 1997
• Grant date: Sep 1, 1998
• Expiry date: May 15, 2017

Classification

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

Abstract

Tertiary phosphines of the formula (I) ##STR1## in which X is a phosphinate or phosphonate group, are prepared by a palladium-catalyzed coupling of p-, m- or o-bromofluorobenzenes with alkyl akylphosphonous acid ester or alkyl alkylphosphite ester and reacting the resulting alkyl fluorophenylphosphinates or alkyl fluorophenylphosphonates with a metal phosphide.