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.:

US 8975434 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 10, 2015

Filed:

Jun. 04, 2012
Applicant:

Hisashi Kanno, Tokyo, JP;

Inventor:

Hisashi Kanno, Tokyo, JP;

Assignee:

Kureha Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 69/75 (2006.01); C07C 49/457 (2006.01); C07C 45/61 (2006.01); C07C 309/66 (2006.01); C07C 309/73 (2006.01); C07C 69/757 (2006.01); C07C 49/567 (2006.01); C07C 67/31 (2006.01); C07C 67/307 (2006.01); C07C 67/343 (2006.01); C07C 45/65 (2006.01); C07C 45/67 (2006.01);
U.S. Cl.
CPC ...
C07C 45/61 (2013.01); C07C 309/66 (2013.01); C07C 309/73 (2013.01); C07C 69/757 (2013.01); C07C 49/567 (2013.01); C07C 67/31 (2013.01); C07C 67/307 (2013.01); C07C 67/343 (2013.01); C07C 45/65 (2013.01); C07C 45/676 (2013.01); C07C 2101/08 (2013.01);
Abstract

In order to provide a novel method for producing a cyclopentanone compound, the present invention is a method for producing a cyclopentanone compound represented by the formula (I). The method includes the steps of: substituting the group represented by Y by a hydrogen atom by allowing a compound represented by the formula (III) or an intermediate compound obtained from the compound represented by the formula (III) to react with a catalyst or a halogenating agent; and substituting, by hydrogen atoms, (i) the group or the atom represented by Zand (ii) the group or the atom represented by Z, by reducing the compound represented by the formula (III) or the intermediate compound obtained from the compound represented by the formula (III).


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