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:
Sep. 12, 2023
Filed:
Apr. 24, 2019
Applicant:
Kumiai Chemical Industry Co., Ltd., Tokyo, JP;
Inventors:
Toshihiro Nagata, Tokyo, JP;
Daisuke Shikama, Tokyo, JP;
Assignee:
KUMIAI CHEMICAL INDUSTRY CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 261/04 (2006.01); B01J 31/02 (2006.01);
U.S. Cl.
CPC ...
C07D 261/04 (2013.01); B01J 31/0232 (2013.01); B01J 31/0237 (2013.01); B01J 2231/348 (2013.01); B01J 2531/002 (2013.01);
Abstract
The objective of the present invention is to provide a production method for a 4,5-dihydroisoxazole represented by formula (3), which is safe, industrially desirable, economical, and environmentally friendly. The present invention causes the compound of formula (1) to react with hydroxylamine in the presence of an acid catalyst to produce the compound of formula (3) through the reaction represented by the reaction equation.