Guanidinium phosphanes, their production and their use

US6187953A · kind A · utility

Assignee

• Celanese GmbH · US

Inventors

• Othmar Stelzer · Wuppertal, DE
• Franz Peter Schmidtchen · Unterschleißheim, DE
• Antonella Hessler · Wuppertal, DE
• Michael Tepper · Wuppertal, DE
• Harald Dibowski · Unterschleißheim, DE
• Michael Riedel · Essen, DE
• Helmut Bahrmann · Hamminkeln, DE

Key dates

• Filing date: Nov 17, 1999
• Grant date: Feb 13, 2001
• Expiry date: Nov 17, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/822
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Guanidinium phosphanes of Formula I ##STR1## wherein the substituents are defined as in the specification which are useful catalyst ligands for the carbon-carbon linkage reactions of the hect reaction.