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:
Jul. 01, 2003
Filed:
Aug. 24, 2001
Applicant:
Inventors:
Patrizia Antognazza, Locate Varesino, IT;
Tiziana Benincori, Milan, IT;
Elisabetta Brenna, Paina di Giussano, IT;
Edoardo Cesarotti, Milan, IT;
Francesco Sannicolo′, Milan, IT;
Licia Trimarco, Milan, IT;
Assignee:
Chemi S.p.A., Cinisello Balsamo, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 3/124 ;
U.S. Cl.
CPC ...
B01J 3/124 ;
Abstract
Chiral diphosphines constituted by an aromatic pentatomic biheterocyclic system, suitable to act as chiral ligands, complexes between said diphosophines and transition metals, and their utilization as chiral catalysts in sterocontrolled reactions, such as diastereo- and enantioselective reduction reactions. Process for the preparation of said chiral diphosophines and process for the preparation of said complexes and for their utilization as chiral catalysts in sterocontrolled reactions.