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:
Jul. 05, 1994
Filed:
Oct. 09, 1990
Applicant:
Inventors:
Jonathan M Cassel, Healdsburg, CA (US);
Steven M Hoagland, San Fransisco, CA (US);
James M Renga, Santa Rosa, CA (US);
Assignee:
Henkel Research Corporation, Plymouth Meeting, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549458 ;
Abstract
A process for the carbonylation of allylic alcohols such as nerolidol, farnesol, or their monocyclic analogues with carbon monoxide at a pressure of at least 30 bar in the presence of a polar solvent and a palladium halide catalyst, optionally an alkali metal halide salt, and optionally an alcoholic solvent. The carbonylated product may then be reduced to the corresponding alcohol, which is cyclized in the presence of Lewis or Bronsted acids to afford an ambergris fragrance compound.