Reaction of Silyldihalomethyllithiums with Nitriles: Formation of α-Keto Acylsilanes via Azirines and 1,3-Rearrangement of Silyl Group from C to N
作者:Kazunari Yagi、Takayuki Tsuritani、Kazuaki Takami、Hiroshi Shinokubo、Koichiro Oshima
DOI:10.1021/ja047708o
日期:2004.7.1
of silyldibromomethyllithium with aryl nitriles provides alpha-keto acylsilanes in good yields. Interestingly, silyldichloromethyllithium induces aza-1,3-Brook rearrangement of the silyl group in th reaction with nitriles. The rearrangement enables a three-component coupling reaction in a one-pot operation.
报道了 α-酮基酰基硅烷的合成,其中 2-溴-2H-氮丙啶作为关键中间体参与其中。甲硅烷基二溴甲基锂与芳基腈的反应以良好的产率提供α-酮基酰基硅烷。有趣的是,甲硅烷基二氯甲基锂在与腈的反应中诱导甲硅烷基的氮杂-1,3-布鲁克重排。重排能够在一锅操作中实现三组分偶联反应。