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:
Oct. 22, 2013
Filed:
Jun. 12, 2009
Applicants:
Christian a Sandoval, Shanghai, CN;
Yue-hui LI, Shanghai, CN;
Inventors:
Christian A Sandoval, Shanghai, CN;
Yue-hui Li, Shanghai, CN;
Assignees:
Enantiotech Corporation Limited, Zhongshan, CN;
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a novel class of ruthenium complexes containing phosphine and hybrid amine ligands, their preparation and use as catalysts in the reduction of simple ketones to alcohols by molecular hydrogenation. The reactivity and enantioselectivity of such complexes in the asymmetric hydrogenation of simple ketones could be enhanced by the addition of some selective additives.