Phosphinine compounds and metal complexes thereof

US6818770B2 · kind B2 · utility

Assignee

• OXENO OLEFINCHEMIE GMBH · DE

Inventors

• Detlef Selent · Berlin, DE
• Armin Börner · Rostock, DE
• Renat Kadyrov · Rostock, DE
• Cornelia Borgmann · Frankfurt, DE
• Dieter Hess · Marl, DE
• Klaus-Diether Wiese · Haltern am See, DE
• Dirk Rottger · Recklinghausen, DE

Key dates

• Filing date: Nov 21, 2001
• Grant date: Nov 16, 2004
• Expiry date: Feb 25, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/845
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Phosphinines of formula (I) can be combined with metal salts to prepare hydroformylation catalysts. The phosphinine complexes have two phosphorus centers that may be substituted with a variety of hetero atoms or alkyl substituents to modify the ligand characteristics of the phosphinine. Phosphinine metal complexes are employed under normal hydroformylation reaction conditions. The preparatory routes to the phosphinine ligands of formula (I) allow for their convenient synthesis.