PREPARATION METHOD OF 2-MERCAPTOBENZOTHIAZOLE

    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.

    IPC分类号: C07D277/72

    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.