Molecular weight-enlarged ligands for asymmetric, homogeneously soluble hydrogenation catalysts, process for the production thereof and use

US6617480B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Hans-Peter Krimmer · Burgkirchen an der Alz, DE
• Jens Woeltinger · Hanau, DE
• Olaf Burkhardt · Kalmthout, BE
• Ingo Klement · Lich, DE
• Hans Henniges · Bonn, DE
• Karlheinz Drauz · Alzenau, DE
• Andreas Bommarius · Frankfurt, DE
• Jean-Louis Philippe · Dreieich, DE
• Andreas Karau · Hamburg, DE

Key dates

• Filing date: Jan 24, 2001
• Grant date: Sep 9, 2003
• Expiry date: Jan 24, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a molecular weight-enlarged, homogeneously soluble ligand, which includes:an average molecular weight of at least 1000 g/mol;a molecular weight-enlarging polymer;optionally, a linker; andat least one homochiral active center;wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer, methods of preparing, catalysts containing same, and methods of using same.