Diisobutylaluminum Hydride Promoted Cyclization of 1-Hydrosilyl-4-silyl-1,3-enynes to Polysubstituted Siloles
作者:Hidenori Kinoshita、Akihiro Ueda、Hiroki Fukumoto、Katsukiyo Miura
DOI:10.1021/acs.orglett.7b00038
日期:2017.2.17
siloles is described. The reaction of 1-hydrosilyl-4-silyl-1,3-enynes with diisobutylaluminum hydride (DIBAL-H) gave multisubstituted siloles in good to high yields. This method could be applied to the synthesis of benzosiloles using 2-hydrosilyl-1-(silylethynyl)benzenes as substrates. The silole formation was also promoted even by a substoichiometric amount of DIBAL-H. The reaction provides a straightforward
描述了一种制备不对称多取代甲硅烷的有效方法。1-氢甲硅烷基-4-甲硅烷基-1,3-炔烃与氢化二异丁基铝(DIBAL-H)的反应以良好或高收率得到多取代的甲硅烷基。该方法可用于以2-氢甲硅烷基-1-(甲硅烷基乙炔基)苯为底物的苯并甲硅烷基的合成。甚至通过亚化学计量的DIBAL-H也促进了硅溶胶的形成。该反应提供了制备甲硅烷和苯甲硅烷的直接方法。