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 8513417 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 20, 2013

Filed:

Jan. 30, 2008
Applicants:

Hideo Utsumi, Fukuoka, JP;

Kiyoshi Sakai, Fukuoka, JP;

Kenichi Yamada, Fukuoka, JP;

Inventors:

Hideo Utsumi, Fukuoka, JP;

Kiyoshi Sakai, Fukuoka, JP;

Kenichi Yamada, Fukuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 221/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

The problem to be solved by the present invention is to provide a highly-versatile method for producing a nitroxyl radical derivative, in which position-2 and position-6 in a TEMPO-based compound can be easily substituted, and further, a method for producing a nitroxyl radical derivative, in which a nitrogen nucleus is labeled withN. The above-described problem can be solved by reacting a triacetoneamine derivative with ketone or aldehyde in the presence of ammonium salt or aN-labeled compound thereof to obtain a 2,6-substituted-4-piperidone derivative.


Find Patent Forward Citations

Utsumi, Hideo. (2013). Method for synthesis of nitroxyl radical (U.S. Patent No. 8513417). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8513417

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