Chiral Aziridination of Olefins Using a Chiral Sulfinamide as the Nitrogen Source
作者:Sundaresan Prabhakar、Ana Lobo、Vasco Bonifácio、Concepción González-Bello、Henry Rzepa
DOI:10.1055/s-0029-1218545
日期:2010.1
Chiral aziridination of cyclic α-bromoenones is achieved by the use of the lithium salt of (S S )-(+)-p-toluenesulfinamide, which leads to products with diastereomeric excesses in the range of 30―65% using a simple protocol. A key factor associated with chiral induction is the incorporation of the reacting olefin in a cycle, indicating the importance of conformational restriction in the reacting double
通过使用 (SS )-(+)-p-甲苯亚磺酰胺的锂盐实现环状 α-溴烯酮的手性氮丙啶化,使用简单的方案可得到非对映体过量在 30-65% 范围内的产品。与手性诱导相关的一个关键因素是反应烯烃在循环中的结合,这表明反应双键中构象限制的重要性。