A NOVEL PROCESS FOR PREPARATION OF ETHYL 2-(4-HYDROXY-3-NITROPHENYL)-4-METHYL-5-THIAZOLECARBOXYLATE
    4.
    发明申请
    A NOVEL PROCESS FOR PREPARATION OF ETHYL 2-(4-HYDROXY-3-NITROPHENYL)-4-METHYL-5-THIAZOLECARBOXYLATE 审中-公开
    乙烯2-(4-羟基-3-硝基苯基)-4-甲基-5-噻唑烷基乙酸酯的制备方法

    公开(公告)号:WO2016046836A3

    公开(公告)日:2016-05-12

    申请号:PCT/IN2015000362

    申请日:2015-09-16

    Applicant: EXCEL IND LTD

    CPC classification number: C07D277/56

    Abstract: A novel process for preparation of ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarboxylate is disclosed. The process involves reaction of ethyl 2-(4-hydroxyphenyl)-4-methyl-5-thiazolecarboxylate with metal nitrate in presence of acid chloride and N,N-Dimethylformamide to produce title compound with improved yield and economics than that reported in the prior art.

    Abstract translation: 公开了一种制备2-(4-羟基-3-硝基苯基)-4-甲基-5-噻唑羧酸乙酯的新方法。 该方法包括在酰氯和N,N-二甲基甲酰胺存在下,将2-(4-羟基苯基)-4-甲基-5-噻唑羧酸乙酯与金属硝酸盐反应生成具有比先前报道的产率和经济性好的标题化合物 艺术。

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