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. 22, 2020
Filed:
Dec. 07, 2018
Oriental (Luzhou) Agrochemicals Co., Ltd., Luzhou, Sichuan, CN;
Zhiming Zhang, Sichuan, CN;
Xiaodong Du, Sichuan, CN;
Qiuju Sheng, Zhejiang, CN;
Jieping Shi, Zhejiang, CN;
Junliang Wang, Zhejiang, CN;
Bangchi Chen, Zhejiang, CN;
ORIENTAL (LUZHOU) AGROCHEMICALS CO., LTD., Luzhou, Sichuan, CN;
Abstract
Disclosed is a method of synthesizing 1,2,4-triazole-3-thione compounds and intermediates thereof. The method includes reacting a hydrazine with glyoxylic acid to form a hydrazono acetic acid intermediate followed by reacting the latter with thiocyanate to obtain the 1,2,4-triazole-3-thione compound. The raw materials involved in the present method are readily available, and the reaction is very specific in terms of regioselectivity, resulting in minimum by-product and high product yield. There are neither specific requirements for special equipment nor special operations such as high vacuum, high temperature, anhydrous and oxygen-free manipulations. The process is simple and generates minimum wastes, suitable for industrial production.