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:
Apr. 28, 2009
Filed:
Sep. 25, 2007
Applicants:
Roger Snowden, Viry, FR;
Anthony Birkbeck, Geneva, CH;
Gary Womack, Hopewell, NJ (US);
Inventors:
Assignee:
Firmenich SA, Geneva, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 69/76 (2006.01); C07C 67/02 (2006.01); C07C 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to the field of organic synthesis. More particularly it provides a process for making aromatic non-conjugated enol esters or enol ethers from an aromatic compound or moiety and a protected enal compound or moiety, such as an acetal or an acylal. The reaction is promoted by a salt of formula MX, M representing a transition metal such as Zn or Fe and X representing a mono-anion, or by BY, wherein Y represents a fluoride or a phenyl group optionally substituted.