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一种有用的区域选择性氢化硅烷化的定向取代基导入试剂
Chlorodimethylvinylsilane(DMVS-Cl) 是一种有用的定向取代基导入试剂,可用于炔烃的区域选择性氢化硅烷化反应。氢化硅烷化是一种常用的合成硅烯的方法,但对于不对称炔烃,其区域选择性(近端VS末端)难以控制。Tomooka等确定了二甲基乙烯基硅基(DMVS)是一种极好的氢化硅烷化定位基,可以高度控制反应的区域选择性。利用DMVS-Cl作为反应物,可以将DMVS基团引入炔丙基或高炔丙基醇,得到的DMVS基取代炔烃随后进行氢化硅烷化,引入硅烷基到邻近的碳原子上。反应结束后,DMVS基团可用TBAF脱除。
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