Sterically hindered chelate phosphinite-phosphite ligand, catalyst, comprising at least one nickel(0) complex stabilized by said ligand and method for production of nitriles

US7521575B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Michael Bartsch · Neustadt, DE
• Robert Baumann · Mannheim, DE
• Gerd Haderlein · Bad Kötzting, DE
• Miquel Angel Flores · Aranjuez, ES
• Tim Jungkamp · Sandhausen, DE
• Hermann Luyken · Ludwigshafen, DE
• Jens Scheidel · Hirschberg, DE
• Wolfgang Siegel · Schifferstadt, DE

Key dates

• Filing date: Oct 28, 2004
• Grant date: Apr 21, 2009
• Expiry date: Aug 1, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/847
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to phosphinite phosphites I of formula 1, 2, 3, 4, 5 or 6 and mixtures thereof, wherein R1, R2, R4 independently represent an alkyl or alkylene group with 1 to 8 carbon atoms, provided that at least one of the groups R1, R2, R4 is different from H; R5 to R22 independently represent H, an alkyl or alkylene group with 1 to 8 carbon atoms; R3 is H, methyl or ethyl; X is F, Cl or CF3, if n=1 or 2 and X is H, if n=0.