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:
Feb. 10, 2009
Filed:
Aug. 01, 2003
Applicants:
Joachim Kralik, Darmstadt, DE;
Kai Fabian, Wilhelmsfeld, DE;
Christoph Mürmann, Reinheim, DE;
Norbert Schweickert, Seeheim-Jugenheim, DE;
Inventors:
Joachim Kralik, Darmstadt, DE;
Kai Fabian, Wilhelmsfeld, DE;
Christoph Mürmann, Reinheim, DE;
Norbert Schweickert, Seeheim-Jugenheim, DE;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 333/20 (2006.01); C07C 215/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the enantioselective preparation of amino alcohols of formula I by enantioselective hydrogenation of amino ketones of the formula II in the presence of a non-racemic catalyst. The catalyst is a transition-metal complex in which the transition metal is complexed to a chiral diphosphine ligand.