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:
Apr. 12, 2005
Filed:
Sep. 16, 2002
Applicants:
Sébastien Duprat DE Paule, Paris, FR;
Nicolas Champion, Dijon, FR;
Virginie Vidal, Paris, FR;
Jean-pierre Genet, Verrieres-le-Buisson, FR;
Philippe Dellis, Dijon, FR;
Inventors:
Sébastien Duprat de Paule, Paris, FR;
Nicolas Champion, Dijon, FR;
Virginie Vidal, Paris, FR;
Jean-Pierre Genet, Verrieres-le-Buisson, FR;
Philippe Dellis, Dijon, FR;
Assignee:
Synkem, Chenove, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J031/00 ; C07F015/00 ; C07F009/02 ; C07C029/14 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to novel diphosphines, in optically pure or racemic form, of formula (I):in which: The invention further relates to the use of a compound of formula (I) as a ligand for the preparation of a metal complex useful as a chiral catalyst in asymmetric catalysis, and to the chiral metal catalysts comprising at least one ligand of formula (I).