公开(公告)号：EP3360867A1

公开(公告)日：2018-08-15

申请号：EP15905712.4

申请日：2015-11-02

申请人： Sennics Co., Ltd.

发明人： CHEN, Xinmin ,  WU, Libao ,  SHI, Song ,  GAO, Shang

IPC分类号： C07D277/72

CPC分类号： C07D277/72 ,  B01J21/04 ,  B01J21/14 ,  B01J31/0225 ,  B01J31/0284

摘要： The disclosure discloses a preparation method for 2-mercaptobenzothiazole. An aniline method is adopted to perform reaction in the presence of a catalyst to prepare the 2-mercaptobenzothiazole, and the catalyst includes sulfonic acid type imidazolium ionic liquid. The sulfonic acid type imidazolium ionic liquid is a type of acidic functionalized ionic liquid, and has the advantages of both a solid acid and a liquid acid. The sulfonic acid type imidazolium ionic liquid is adopted as an active ingredient of the catalyst, and may remarkably improve a conversion rate of the reaction raw materials and increase a yield of the 2-mercaptobenzothiazole. Meanwhile, due to the characteristics of high catalytic activity, no volatilization, low corrosion, high thermal stability and the like of the 2-mercaptobenzothiazole, the preparation method also has the comprehensive advantages of simple process, low cost, low tar yield, high environment friendliness and the like.