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:
Apr. 12, 2022
Filed:
Nov. 25, 2019
Zhejiang Zhuji United Chemicals Co., Ltd., Zhejiang, CN;
Qiuju Sheng, Zhejiang, CN;
Baochuan Guan, Zhejiang, CN;
Tianhao Zhang, Zhejiang, CN;
Pan Zhang, Zhejiang, CN;
Jinlong Zhang, Zhejiang, CN;
Bangchi Chen, Zhejiang, CN;
ZHEJIANG ZHUJI UNITED CHEMICALS CO., LTD., Hangzhou, CN;
Abstract
Disclosed herein are a preparation method and an application of an isoxazinone compound (I), where the preparation method includes: reacting compound (II) with a carboxylic acid (III) in the presence of a dehydrating agent and a base to produce the isoxazinone compound (I); and subjecting the isoxazinone compound (I) and a protonic acid salt of an amino compound (IV) or ROH (VII) to ring-opening reaction in the presence of a base to produce a bisamide compound (V) or an N-acyl benzoate compound (VI).