The use of samarium or sodium iodide salts as an alternative for the aza-Henry reaction
作者:Humberto Rodríguez-Solla、Carmen Concellón、Noemí Alvaredo、Raquel G. Soengas
DOI:10.1016/j.tet.2011.12.061
日期:2012.2
A novel reaction of bromonitromethane with a variety of imines in very mild conditions promoted by SmI2 and NaI to afford nitroamines or bromonitroamines is described. When these reactions were performed on sugar-based imines, the corresponding nitroamines or bromonitroamines were obtained in high yields and from moderate to good stereoselectivities. Synthetic possibilities of nitroamines were also
描述了由SmI 2和NaI促进的在非常温和的条件下溴硝基甲烷与各种亚胺的新颖反应,以提供硝基胺或溴硝基胺。当对基于糖的亚胺进行这些反应时,以高收率和中等至良好的立体选择性获得了相应的硝胺或溴硝胺。硝基胺在室温下在吡咯烷存在下用SmI 2 / H 2 O还原也显示出合成的可能性。提出了这种新颖的氮杂-亨利反应的机理。