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:
Sep. 13, 2011
Filed:
Feb. 28, 2008
Applicants:
Manfred Breuninger, Bad Saeckingen, DE;
Marcel Joray, Hochwald, CH;
Inventors:
Manfred Breuninger, Bad Saeckingen, DE;
Marcel Joray, Hochwald, CH;
Assignee:
DSM IP Assets B.V., Heerlen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 39/10 (2006.01); C07C 39/11 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for the preparation of hydroxytyrosol, characterized by reacting 4-chloroacetyl-catechol with a metal formate and formic acid in an aqueous solvent optionally containing a lower alkanol and catalytically hydrogenating the 4-hydroxyacetyl-catechol obtained in the presence of a precious metal, preferably on a carrier.