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. 01, 2014
Filed:
Dec. 20, 2007
Keith W. Hutchenson, Lincoln University, PA (US);
Scott Christopher Jackson, Wilmington, DE (US);
Leo Ernest Manzer, Wilmington, DE (US);
Mark A. Scialdone, West Grove, PA (US);
Mayis Seapan, Landenberg, PA (US);
Keith W. Hutchenson, Lincoln University, PA (US);
Scott Christopher Jackson, Wilmington, DE (US);
Leo Ernest Manzer, Wilmington, DE (US);
Mark A. Scialdone, West Grove, PA (US);
Mayis Seapan, Landenberg, PA (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
This invention provides a process for producing dihydronepetalactone using mixtures comprising both trans-cis nepetalactone and cis-trans nepetalactone. A reaction mixture comprising trans-cis nepetalactone and cis-trans nepetalactone is first contacted with hydrogen in the presence of at least one hydrogenation catalyst under conditions that optimise the preferential conversion of trans-cis nepetalactone to dihydronepetalactone. Cis-trans nepetalactone is subsequently converted to dihydronepetalactone by contact with hydrogen in the presence of at least one hydrogenation catalyst.