A variety of trialkylsilylvinylcyclopropanes were prepared by two different routes: (a) Cyclopropanation of 1-alkenylsilanes and (b) the reactions of 1-bromocyclopropyllithium with trimethylsilyl chloride. Radical induced ring opening reaction of these cyclopropanes were examined. 1-Dimethylphenylsilyl-2-vinylcyclopropane or 3-methyl-1-trialkylsilyl-2-vinylcyclopropane provided the corresponding homoallylic
各种三烷基甲
硅烷基
乙烯基环丙烷通过两种不同的途径制备:(a)1-烯基
硅烷的
环丙烷化反应和(b)1-
溴环
丙基锂与三甲基甲
硅烷基
氯的反应。检查了这些
环丙烷的自由基诱导的开环反应。1-二甲基苯基甲
硅烷基-2-
乙烯基环丙烷或 3-甲基-1-三烷基甲
硅烷基-2-
乙烯基环丙烷仅在用 PhSH、Ph3SnH、n-Bu3SnH 或 n-
C6F13I 处理后提供相应的高烯丙基
硅烷。另一方面,2-苯基-1-三甲基甲
硅烷基-3-
乙烯基环丙烷或2-乙酰基-1-三甲基甲
硅烷基-3-
乙烯基环丙烷选择性地产生烯丙基
硅烷。