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:
May. 12, 1998
Filed:
Mar. 07, 1997
Applicant:
Inventors:
Makoto Emura, Kanagawa, JP;
Takaaki Toyoda, Kanagawa, JP;
Nobuo Seido, Kanagawa, JP;
Makoto Harada, Kanagawa, JP;
Ryoji Noyori, Aichi, JP;
Takao Ikariya, Aichi, JP;
Takashi Ohkuma, Aichi, JP;
Assignee:
Takasago International Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568834 ; 568832 ;
Abstract
A process whereby trans-3-isocamphylcyclohexanol, which is useful as a perfume ingredient, can be produced on an industrially available scale, at a low cost and at a high stereoselectivity, is disclosed. The process comprises hydrogenating 3-isocamphylcyclohexanone represented by the following formula (I): ##STR1## by using a ruthenium/phosphine complex as a catalyst in the presence of a base containing an alkali metal or an alkaline earth metal and an amine.