Process for the preparation of thiazole intermediate
    1.
    发明申请
    Process for the preparation of thiazole intermediate 失效
    制备噻唑中间体的方法

    公开(公告)号:US20030204095A1

    公开(公告)日:2003-10-30

    申请号:US10309812

    申请日:2002-12-05

    IPC分类号: C07D277/56

    CPC分类号: C07D277/24

    摘要: The present invention provides a process for the preparation of 4-methyl-5-formyl-thiazole of the formula (I) 1 which comprises reducing the thiazole ester of the formula (III) to thiazole alcohol of the formula (IV), using sodium borohydride in the presence of AlCl3 in a solvent and oxidising using an oxidizing agent the thiazole alcohol of the formula (IV) to obtain 4-methyl-5-formyl-thiazole of the formula (I).

    摘要翻译: 本发明提供制备式(I)的4-甲基-5-甲酰基 - 噻唑的方法,其包括使用硼氢化钠将式(III)的噻唑酯还原成式(IV)的噻唑醇 在AlCl 3存在下在溶剂中并使用氧化剂将式(Ⅳ)的噻唑醇氧化得到式(I)的4-甲基-5-甲酰基 - 噻唑。