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:
Aug. 23, 2011
Filed:
Apr. 02, 2008
Applicants:
Philippe Dupau, Bellegarde, FR;
Lucia Bonomo, Bellegarde, FR;
Inventors:
Philippe Dupau, Bellegarde, FR;
Lucia Bonomo, Bellegarde, FR;
Assignee:
Firmenich SA, Geneva, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/02 (2006.01); C07F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to the use of Ruthenium complexes having cyclopentadienyl derivatives and a diene as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of conjugated dienes into the corresponding 'cis'-alkene as major product, i.e. wherein the two substituents in position 2,3 of the diene are in a cis configuration in the corresponding alkene.