Cyclopentadienyl, indenyl or fluorenyl substituted phosphine compounds and their use in catalytic reactions

US8969624B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Herbert Plenio · Bensheim, DE
• Christoph Fleckenstein · Ludwigshafen am Rhein, DE
• Renat Kadyrov · Rostock, DE
• Juan Almena · Hanau, DE
• Axel Monsees · Frankfurt, DE
• Thomas Riermeier · Wemding, DE

Key dates

• Filing date: Oct 29, 2013
• Grant date: Mar 3, 2015
• Expiry date: Oct 29, 2033

Classification

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

Abstract

The invention is directed to a phosphine compound represented by general formula (1) wherein R′ and R″ independently are selected from alkyl, cycloalkyl and 2-furyl radicals, or R′ and R″ are joined together to form with the phosphorous atom a carbon-phosphorous monocycle comprising at least 3 carbon atoms or a carbon-phosphorous bicycle; the alkyl radicals, cycloalkyl radicals, and carbon-phosphorous monocycle being unsubstituted or substituted by at least one radical selected from the group of alkyl, cycloalkyl, aryl, alkoxy, and aryloxy radicals; Cps is a partially substituted or completely substituted cyclopentadien-1-yl group, including substitutions resulting in a fused ring system, and wherein a substitution at the 1-position of the cyclopentadien-1-yl group is mandatory when the cyclopentadien-1-yl group is not part of a fused ring system or is part of an indenyl group. Also claimed is the use of these phosphines as ligands in catalytic reactions and the preparation of these phosphines.