Towards bis(acylsilanes) and cyclic unsaturated acylsilanes via metathesis: an exploratory study
作者:Catherine Hammaecher、Jean-Philippe Bouillon、Charles Portella
DOI:10.1016/j.tet.2009.02.085
日期:2009.7
New acyl(allyl)- and acyl(vinyl)silanes have been synthesized in order to explore cross metathesis or ring-closing metathesis as a new way towards bis(acyl)silanes or unsaturated cyclic acylsilanes, respectively. Metathesis from acylsilanes did not work but their precursors, in particular in benzotriazol series, proved to be good candidates. Two new benzotriazolyl substituted silacyclic compounds (tetrahydrosiline
为了探索交叉复分解或闭环复分解,分别合成了新的酰基(烯丙基)-和酰基(乙烯基)硅烷,作为分别制备双(酰基)硅烷或不饱和环状酰基硅烷的新方法。酰基硅烷的复分解反应不起作用,但事实证明它们的前体(尤其是苯并三唑系列的前体)是不错的选择。因此,通过RCM制备了两种新的苯并三唑基取代的甲硅烷基化合物(四氢硅烷和二氢硅烷)。它们转化成相应的酰基硅烷失败。相反,通过两个步骤即可完成在内部位置带有硅原子的双(酰基硅烷)的制备:烯丙基(二甲基甲硅烷基)苯并三唑基中间体水解的交叉复分解。