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. 27, 1999
Filed:
Oct. 13, 1998
Applicant:
Inventors:
Romano Dorta, Chur, CH;
Patrick Egli, Alpnach, CH;
Nikolaus H Bieler, Glis, CH;
Antonio Togni, Oberwil, CH;
Martin Eyer, Glis, CH;
Assignee:
Lonza AG, Gampel/Valais, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C07D / ; C07C / ;
U.S. Cl.
CPC ...
556 14 ; 556 18 ; 556 21 ; 556136 ; 564414 ; 564488 ; 548490 ; 548508 ;
Abstract
Binuclear iridium (I) phosphine complexes of the general formula: ##STR1## in which X is fluorine, chlorine, bromine or iodine, and ##STR2## is in each case a chiral bidentate diphosphine ligand. The complexes are particularly suitable as catalysts for the inter- or intramolecular asymmetric hydroamination of prochiral olefins.