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:
Dec. 09, 2003
Filed:
Dec. 19, 2001
Applicant:
Inventor:
Martin Studer, Basel, CH;
Assignee:
Solvias AG, Basel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 4/330 ; C07C 4/100 ; C07C 2/700 ;
U.S. Cl.
CPC ...
C07C 4/330 ; C07C 4/100 ; C07C 2/700 ;
Abstract
A process for the heterogeneous and enantioselective hydrogenation of prochiral organic &agr;-keto compounds with platinum as the catalyst in the presence of a soluble or immobilized chiral aromatic nitrogen base with at least one basic nitrogen atom adjacent to stereogenic carbon atoms, whereby prochiral &agr;-ketoacetals are hydrogenated to optically active &agr;-hydroxyacetals.