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. 28, 2007
Filed:
Nov. 27, 2006
Gennadiy G. Kolomeyer, Jacksonville, FL (US);
Jacob Oyloe, Arlington, VA (US);
Douglas A. Ferone, Jacksonville, FL (US);
Gennadiy G. Kolomeyer, Jacksonville, FL (US);
Jacob Oyloe, Arlington, VA (US);
Douglas A. Ferone, Jacksonville, FL (US);
Millennium Specialty Chemicals, Inc., Houston, TX (US);
Abstract
A two-step aldol condensation process is disclosed. α-Campholenic aldehyde (ACA) and methyl ethyl ketone (MEK) react in the presence of a base under conditions effective to produce a mixture comprising a high yield of ketol condensation products. Dehydration of the ketols in the presence of an organic sulfonic acid provides unsaturated ketones that are valuable intermediates for fragrance components for synthetic sandalwood products. Compared with the usual one-step, base-catalyzed approach, the two-step process increases the yield of all condensation products and maximizes production of the most valuable ketone isomers.