Intramolecular cyclization mediated by silylmetalation of acetylenes with PhMe2SiMgMe/CuI and radical nature of the reagent
作者:Yasuhiro Okuda、Yoshitomi Morizawa、Koichiro Oshima、Hitosi Nozaki
DOI:10.1016/s0040-4039(01)81210-7
日期:1984.1
Whereas CuI catalyzed silylmagnesation of the tosylate of 5- hexyn-l-ol with the title reagent affords dimethylphenylsilylmethylenecyclopentane exclusively, the mesylate of 3-butyn-l-ol gives a mixture of unexpected silylcyclobutene and cyclopropylidene derivative.
CuI用标题试剂催化的5-己炔-1-醇的甲苯磺酸酯的甲硅烷基镁仅得到二甲基苯基甲硅烷基亚甲基环戊烷,而3-丁炔-1-醇的甲磺酸酯则得到了意想不到的甲硅烷基环丁烯和环亚丙基衍生物的混合物。