Metal-catalyzed ylide formation and [2,3] sigmatropic rearrangement of allyl sulfides with trimethylsilyldiazomethane
作者:David S. Carter、David L. Van Vranken
DOI:10.1016/s0040-4039(99)00112-4
日期:1999.2
Trimethylsilyldiazomethane is compared with ethyl diazoacetate for the rhodium, copper, and cobalt catalyzed formation and [2,3] rearrangement of allylsulfonium ylides. At room temperature, the reaction can be carried out using the allyl sulfide as the limiting reagent by slow addition of 3 equivalents of the diazo compound. Slightly better yields were obtained with trimethylsilyldiazomethane than
将三甲基甲硅烷基重氮甲烷与重氮乙酸乙酯进行了铑,铜和钴催化的烯丙基ulf化烷基化物的形成和[2,3]重排的比较。在室温下,可以通过缓慢加入3当量的重氮化合物,使用烯丙基硫作为限制试剂来进行反应。用三甲基甲硅烷基重氮甲烷获得的收率略高于重氮乙酸乙酯。