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:
Dec. 14, 2021
Filed:
Mar. 30, 2018
Applicant:
International Flavors & Fragrances Inc., New York, NY (US);
Inventors:
James S. Sharley, Biggleswade, GB;
Ian R. Baxendale, Durham, GB;
Estela Espinos Ferri, Moncofar, ES;
Ana Maria Collado Perez, Benicarlo, ES;
Isabelle Fernandez Fernandez, Benicarlo, ES;
Assignee:
International Flavors & Fragrances Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/307 (2006.01); C07C 67/317 (2006.01); C07C 69/738 (2006.01);
U.S. Cl.
CPC ...
C07C 67/307 (2013.01); C07C 67/317 (2013.01); C07C 69/738 (2013.01);
Abstract
Disclosed is a chemical process of preparing dehydrohedione from Hedione via α-chlorination and elimination steps. The process can be conducted in a one-pot process or in a continuous reactor system. Accordingly, a simple and cost effective process of preparing cis-Hedione enriched products is developed through reduction of dehydrohedione in the presence of a chiral catalyst system.