(2-Alkynylphenyl)silanes undergo intramolecular cyclization in the presence of an excess or a subequimolar amount of potassium hydride to give a variety of new 2-substituted benzosiloles in good to excellent yields. Some of these compounds showed a high fluorescence quantum yield both in solution and in the solid state, and they also showed reversible reduction in THF.
(2-炔基
苯基)
硅烷在过量或亚当等摩尔量的
氢化钾存在下发生分子内环化,生成多种新的2-取代
苯并
硅杂环,产率良好至优秀。其中一些化合物在溶液和固态下均显示出较高的荧光量子产率,并且在THF中表现出可逆还原性。