Phosphonites, use thereof as ligand in transition metal complexes and method for production of nitriles

US7067685B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Michael Bartsch · Neustadt, DE
• Robert Baumann · Mannheim, DE
• Dagmar Pascale Kunsmann-Keitel · Ludwigshafen am Rhein, DE
• Gerd Haderlein · Bad Kötzting, DE
• Tim Jungkamp · Sandhausen, DE
• Marco Altmayer · Mannheim, DE
• Wolfgang Siegel · Schifferstadt, DE
• Ferenc Molnar · Micheldorf, AT

Key dates

• Filing date: Oct 4, 2002
• Grant date: Jun 27, 2006
• Expiry date: Nov 10, 2022

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 phosphinites I of formulae (1) or (2), in which R1, R2, R5, R6, R7, R8, R9 independently represent hydrogen, an alkyl or alkylene group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms; R3 is H or methyl; R4 is i-propyl or t-butyl; X is F, Cl or CF3 and n is 1 or 2