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:
Jan. 11, 2022
Filed:
Jul. 12, 2018
Zhejiang Nhu Company Ltd., Shaoxing, CN;
Zhejiang University, Hangzhou, CN;
Zhejiang Nhu Special Materials Co., Ltd., Shaoxing, CN;
Zhirong Chen, Hangzhou, CN;
Woyuan Li, Shaoxing, CN;
Hong Yin, Hangzhou, CN;
Guíyang Zhou, Shaoxing, CN;
Haoran Li, Hangzhou, CN;
Shuaifeng Pan, Shaoxing, CN;
Ming Lian, Shaoxing, CN;
Guangde Qin, Shaoxing, CN;
Qichuan Li, Shaoxing, CN;
Zhejiang NHU Company Ltd., Zhejiang, CN;
Zhejiang University, Zhejiang, CN;
Zhejiang NHU Special Materials Co., Ltd., Zhejiang, CN;
Abstract
The present disclosure discloses a preparation method for 4-phenylthio-benzenethiol. The preparation method comprises the following steps: subjecting phenyl sulfide as a raw material to a halogenation reaction to obtain 4-halophenyl sulfide; subjecting the 4-halophenyl sulfide to a sulfhydrylation reaction to obtain a 4-phenylthio-phenylthiolate; and subjecting the 4-phenylthio-phenylthiolate to acidification. The preparation method of the present disclosure avoids the use of materials such as thiophenol which pollutes the environment, and realizes efficient recycling of the reaction materials, solvents, water and the like. The preparation method of the present disclosure is a green process for the synthesis of 4-phenylthio-phenylthiol without organic waste, waste acid and waste water discharge.