The reaction of organosilicon hydrides with carbomethoxycarbene generated from methyl diazoacetate
作者:Hamao Watanabe、Taichi Nakano、Kan-Ichi Araki、Hideyuki Matsumoto、Yoichiro Nagai
DOI:10.1016/s0022-328x(00)89743-0
日期:1974.4
The reaction of various organosilicon hydrides including hydropolysilanes with methyl diazoacetate in the preence of copper catalyst gave α-silyl- and polysilyl- esters in 44 – 90% yields. The relative reactivities of a series of m- and p-substituted phenyldimethylsilane towards the active species generatedfrom the diazoacetate correlate well with the Hammett σ constants for the ring substituents,
在铜催化剂的作用下,各种有机硅氢化物(包括氢化聚硅烷)与重氮乙酸甲酯反应,生成的α-甲硅烷基酯和聚甲硅烷基酯的收率为44%至90%。一系列的相对反应性米-和p -取代的苯基二甲基硅烷向活性种generatedfrom的重氮基乙酸酯良好关联与哈米特σ常数为环取代基,与ρ的值-0.26和的0.984的相关系数。基于观察到的ϱ值,可以得出结论,该反应涉及通过仅略微离子型过渡态将游离碳甲氧基卡宾插入到硅氢键中。