作者:Dong Ho Pae、Manchao Xiao、Michael Y. Chiang、Peter P. Gaspar
DOI:10.1021/ja00004a031
日期:1991.2
respectively. The siliranes are precursors for the efficient thermal and photochemical generation of diadamantylsilylene (Ad 2 Si:). The addition of thermally generated Ad 2 Si: to cis- and trans-2-butene and -3-hexene is totally stereospecific, implying reaction from a singlet electronic state of the silylene. Photoiosomerization of cis- and trans-1,1-diadamantylsiliranes complicates the study of the
在烯烃和炔烃的存在下,通过双金刚烷基二碘硅烷的超声辐照辅助锂诱导脱卤,分别导致 1,1-二金刚烷基硅烷和 1,1-二金刚烷基硅烷的高产率。硅烷是有效热和光化学生成二金刚烷基亚甲硅烷 (Ad 2 Si:) 的前体。将热生成的 Ad 2 Si: 添加到顺式和反式 2-丁烯和 -3-己烯中是完全立体定向的,这意味着从亚甲硅烷的单线态电子状态开始反应。顺式和反式 1,1-二金刚烷基硅烷的光异构化使添加上光 Ad 2 Si 的立体化学研究复杂化,但再次观察到高度的立体特异性