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.
本发明涉及一种制备2-重氮基-3-三甲基
硅氧基-3-
丁烯酸酯的方法,包括在有机碱的存在下将重氮
乙酰乙酸酯与
碘化三甲基
硅烷反应,其中
碘化三甲基
硅烷是通过将六甲基二
硅烷与
碘反应制备而成。本发明还涉及将这种2-重氮基-3-三甲基
硅氧基-3-
丁烯酸酯转化为其他化合物,如取代的重氮氮杂环
丙酮酸酯、氮杂环
丙酮酸酯或双环
酮酸酯。