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.

Date of Patent:
Nov. 11, 2003

Filed:

May. 10, 2000
Applicant:
Inventors:

Alfons Baiker, Opfikon, CH;

Niklaus Künzle, Wil, CH;

Tamas Mallat, Zürich, CH;

Assignee:

Roche Vitamins Inc., Parsippany, NJ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07C 6/966 ; C07C 2/914 ;
U.S. Cl.
CPC ...
C07D / ; C07C 6/966 ; C07C 2/914 ;
Abstract

The invention relates to a continuous process for enantioselective catalytic hydrogenation of an alpha ketocarbonyl compound such as alpha ketoesters and alpha ketolactones to produce an alpha hydroxy carbonyl compound.


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