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. 01, 2011
Filed:
Jun. 23, 2006
Katsuya Shimizu, Tokyo, JP;
Fumio Matsushita, Tokyo, JP;
Katsuya Shimizu, Tokyo, JP;
Fumio Matsushita, Tokyo, JP;
Asahi Kasei Chemicals Corporation, Chiyoda-Ku, JP;
Abstract
A substituted cyclopentanone represented by the following formula (2): (wherein Rand Rrepresent a substituent having 1 to 8 carbon atoms, may be the same as Rand R, respectively, and may be the same as each other) can be produced by hydrogenating the double bond in a compound represented by the following formula (1): (wherein Rand Rrepresent a substituent having 1 to 8 carbon atoms) in the presence of a transition metal catalyst by using a carboxylic acid or a specific concentration of a carboxylic acid ester as a solvent. This process can produce a substituted cyclopentanone which is useful as a jasmine fragrance, an intermediate thereof or the like, in a simple and inexpensive manner at a high cis-isomer ratio.