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:
Mar. 15, 2016
Filed:
Sep. 06, 2013
Applicant:
Takasago International Corporation, Tokyo, JP;
Inventors:
Hideo Ujihara, Yokohama, JP;
Mitsuhiko Fujiwhara, Chigasaki, JP;
Assignee:
TAKASAGO INTERNATIONAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/00 (2006.01); C07C 211/21 (2006.01); C07B 53/00 (2006.01); C07C 47/21 (2006.01);
U.S. Cl.
CPC ...
C07C 45/00 (2013.01); C07B 53/00 (2013.01); C07C 47/21 (2013.01); C07C 211/21 (2013.01);
Abstract
A method for producing an optically active 2,3-dihydrofarnesal of formula (1) is disclosed. The method includes subjecting β-farnesene f formula (2) to amination in the presence of a lithium salt of an amine to obtain (2E)-farnesyl allylamine of general formula (3); subjecting the (2E)-farnesyl allylamine to asymmetric isomerization to obtain an optically active farnesyl enamine of general formula (4); and subjecting the optically active farnesyl enamine to solvolysis: