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. 12, 2013
Filed:
Apr. 02, 2009
Makiko Muroi, Wakayama, JP;
Atsushi Nagasawa, Wakayama, JP;
Kunshi Matsumoto, Wakayama, JP;
Mariko Kagaya, Wakayama, JP;
Hirotsugu Nishimura, Wakayama, JP;
Yoshiharu Ataka, Wakayama, JP;
Makiko Muroi, Wakayama, JP;
Atsushi Nagasawa, Wakayama, JP;
Kunshi Matsumoto, Wakayama, JP;
Mariko Kagaya, Wakayama, JP;
Hirotsugu Nishimura, Wakayama, JP;
Yoshiharu Ataka, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The present invention relates to [1] a process for producing a 2-alkyl-2-cycloalken-1-one represented by the following general formula (2), which includes the step of subjecting a 2-(1-hydroxyalkyl)cycloalkan-1-one to dehydration and isomerization in the co-existence of an acid and a platinum group metal catalyst, and [2] a process for producing an alkyl(3-oxo-alkylcycloalkyl)acetate which is useful as a perfume material, using the 2-alkyl-2-cycloalken-1-one: wherein n is an integer of 1 or 2; and Rand Rare each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms with the proviso that Rand Rmay form a ring through a carbon atom adjacent thereto.