作者:Dietmar Seyferth、Horst Menzel、Alan W. Dow、Thomas C. Flood
DOI:10.1016/s0022-328x(00)82916-2
日期:1972.11
to activated olefins were not very stable, and only the adduct with acrylonitrile was isolated as a pure material Trimethylsilyldiazomethane undergoes Me3SiCH transfer to olefins, giving trimethylsilyl-substituted cyclopropanes, in the presence of CuCI in benzene, but other products are formed as well. Thus such a reaction with cyciohexenegave anti-7-trimethylsilylnorcarane (65%), syn-7-trimethylsilylnorcarane
通过KOH水溶液对亚硝基-N-(三甲基甲硅烷基甲基)脲的作用来制备三甲基甲硅烷基重氮甲烷。讨论了可以通过气相色谱分离的这种稳定的黄绿色液体的光谱性质。其用乙酸反应,得到预期的CH 3 CO 2 CH 2森达3除了SiC裂解产物,CH 3 CO 2 CH 3和CH 3 CO 2森达3。Me 3 SiCHN 2的1,3-偶极加成产物活化的烯烃不是很稳定,只有与丙烯腈的加合物被分离出来,因为纯物质三甲基甲硅烷基重氮甲烷经过Me 3 SiCH转移到烯烃上,在苯中存在CuCl的情况下得到三甲基甲硅烷基取代的环丙烷,但也形成了其他产物。因此,这种与环己烯的反应产生了抗-7-三甲基甲硅烷基正戊烷(65%),顺-7-三甲基甲硅烷基正戊烷(7%),顺式和反式-1,2-双(三甲基甲硅烷基)乙烯(分别为9%和13%),还有一个身份不明的Me 3 SiCH三聚体(2.3%)。