PROCESS FOR PREPARATION OF ESTERS OF 2-DIAZO-3-TRIMETHYLSILYLOXY-3-BUTENOIC ACID
    4.
    发明申请
    PROCESS FOR PREPARATION OF ESTERS OF 2-DIAZO-3-TRIMETHYLSILYLOXY-3-BUTENOIC ACID 审中-公开
    2-二氮-3-三甲氧基硅氧烷-3-氨基酸的酯的制备方法

    公开(公告)号:WO2005021560A1

    公开(公告)日:2005-03-10

    申请号:PCT/IB2004/002777

    申请日:2004-08-27

    CPC classification number: C07F7/188 Y02A50/39

    Abstract: The present invention relates to a process for the preparation of esters of 2-diazo-3-trimethylsilyloxy-3-butenoic acid which comprises reacting a diazoacetoacetate with iodotrimethylsilane in the presence of an organic base, wherein iodotrimethylsilane is prepared by reacting hexamethyldisilane with iodine. The present invention further relates to converting such esters of 2-diazo-3-trimethylsilyloxy-3-butenoic acid to other compounds, such as a substituted diazoazetidinone, an azetidinone, or a bicyclo ketoester.

    Abstract translation: 本发明涉及2-重氮-3-三甲基甲硅烷氧基-3-丁烯酸的酯的制备方法,其包括在有机碱的存在下使重氮乙酰乙酸与碘代三甲基硅烷反应,其中碘代三甲基硅烷通过六甲基二硅烷与碘反应制备。 本发明还涉及将2-重氮-3-三甲基甲硅烷氧基-3-丁烯酸的酯转化为其它化合物,例如取代的重氮基吖丁酮,氮杂环丁酮或双环酮酯。

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