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:
Feb. 08, 2022
Filed:
Oct. 01, 2020
Hangzhou Transfar Fine Chemical Co., Ltd., Zhejiang Province, CN;
Hangzhou Normal University, Hangzhou, CN;
Zhejiang Transfar Functional New Material Co., Ltd., Hangzhou, CN;
Pengfei Zhang, Hangzhou, CN;
Shengpeng Wang, Hangzhou, CN;
Wanmei Li, Hangzhou, CN;
Weiming Xu, Hangzhou, CN;
Bajin Chen, Hangzhou, CN;
Xiaojun Wang, Hangzhou, CN;
Hangzhou Transfar Fine Chemical Co., Ltd., Zhejiang Province, CN;
Hangzhou Normal University, Hangzhou, CN;
Zhejiang Transfar Functional New Material Co., Ltd., Hangzhou, CN;
Abstract
A method for preparing alkynyl 2-halo-2,2-difluoroacetate is disclosed. The method comprises: subjecting a 2-halo-2,2-difluoro acetic acid, an alkynol, and a catalyst to an esterification reaction in a solvent, to obtain alkynyl 2-halo-2,2-difluoroacetate, wherein the catalyst includes one or more of sulfuric acid, phosphoric acid and p-toluenesulfonic acid.