The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2009
Filed:
May. 07, 2004
Martin Kesselgruber, Basel, CH;
Marc Thommen, Nuglar, CH;
Martin Kesselgruber, Basel, CH;
Marc Thommen, Nuglar, CH;
Solvias AG, Basel, CH;
Abstract
Process for preparing a catalyst solution by reacting metal complexes and diphosphines in the presence of an inert organic solvent, which is characterized in that a) an uncharged or cationic metal complex having a TM8 metal as central atom, and b) a salt of a chiral ditertiary diphosphine which has one or two phospholane groups which are bound to a carbon chain having from 2 to 4 carbon atoms and contain anions selected from the group consisting of RCOO, RSO, BF, PF, AsF, SbF, B(CF)and B(3,5-bistrifluoromethylphenyl), are reacted with one another, where the ratio of the components a) and b) is from 1:1 to 1:2 and Ris C-C-haloalkyl, C-C-halocycloalkyl or C-C-haloaryl.