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.:

US 6465698 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 15, 2002

Filed:

Jun. 11, 2001
Applicant:
Inventors:

Arnold Gloor, Basel, CH;

Hansjoerg Gruendler, Rheinfelden, CH;

Werner Simon, Riehen, CH;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 3/304 ;
U.S. Cl.
CPC ...
C07C 3/304 ;
Abstract

A process for catalytically isomerizing Z-3-methylpent-2-en-4-yn-1-ol to E-3-methylpent-2-en-4-yn-1-ol is provided. This process includes contacting a stereoisomeric mixture containing Z-3-methylpent-2-en-4-yn-1-ol and E-3-methylpent-2-en-4-yn-1-ol with a source of bromine radicals in a two-phase reaction mixture having an aqueous phase and a stereoisomeric mixture phase, intermixing the reaction mixture, and heating the reaction mixture to a temperature from about −10° C. to about 100° C.


Find Patent Forward Citations

Gloor, Arnold. (2002). Catalytic isomerization of z-pentol to e-pentol (U.S. Patent No. 6465698). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6465698

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