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. 20, 2018
Filed:
Apr. 28, 2017
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Shinnosuke Wakamori, Joetsu, JP;
Naoki Ishibashi, Joetsu, JP;
Miyoshi Yamashita, Joetsu, JP;
Takeshi Kinsho, Joetsu, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/00 (2006.01); C07C 67/03 (2006.01); C07C 49/463 (2006.01); C07C 45/62 (2006.01); C07C 45/63 (2006.01); C07C 29/147 (2006.01);
U.S. Cl.
CPC ...
C07C 67/03 (2013.01); C07C 29/147 (2013.01); C07C 45/62 (2013.01); C07C 45/63 (2013.01); C07C 49/463 (2013.01); C07C 67/00 (2013.01); C07C 2601/08 (2017.05); C07C 2601/14 (2017.05);
Abstract
A method for the preparation of a sex pheromone of Obscure Mealy bug (OMB), (±)(2,3,4,4-tetramethycyclopentyl) methyl acetate includes a step of subjecting alpha-halotetramethylcyclohexanone to a Favorskii rearrangement to obtain a 2,3,4,4-tetramethylcyclopentane compound (2), a step of subjecting the compound (2) to reduction to obtain (2,3,4,4-tetramethylcyclopentyl)methanol compound (3) and a step of subjection the compound (3) to acylation to obtain a (2,3,4,4-tetramethylcyclopentyl)methyl carboxylate compound (4).