作者:Nico Schwarze、Simon Steinhauer、Beate Neumann、Hans-Georg Stammler、Berthold Hoge
DOI:10.1002/anie.201609096
日期:2016.12.23
employed for hydrosilylation reactions. In the presence of a palladium catalyst, hydrosilylation of phenylacetylene with Si(C2F5)3H affords the product of an α‐addition whereas the reaction of trimethylsilylacetylene with the silane leads to the β‐trans product. Tris(pentafluoroethyl)silane can be deprotonated by sterically demanding bases such as lithium diisopropylamide at low temperatures to give
通过用Bu 3 SnH处理Si(C 2 F 5)3 X(X = Cl,Br)方便地获得的三(五氟乙基)硅烷已成功用于氢化硅烷化反应。在钯催化剂的存在下,苯乙炔与Si(C 2 F 5)3 H的硅氢加成生成α-加成产物,而三甲基甲硅烷基乙炔与硅烷的反应则导致β-反式产品。三(五氟乙基)硅烷可以在低温下被空间需求量较高的碱(例如二异丙基氨基化锂)去质子化,得到相应的硅烷离子。向这种高反应性物质中添加冠醚或穴状配体,可以在室温下分离和表征盐状的三(五氟乙基)硅烷。