Preparation of sugar-derived 1,2-diamines via indium-catalyzed aza-Henry-type reaction: application to the synthesis of 6-amino-1,6-dideoxynojirimycin
作者:Raquel G. Soengas、Artur M.S. Silva
DOI:10.1016/j.tetlet.2013.02.041
日期:2013.4
straightforward access to β-nitroamine derivatives. The use of chiral sugar-derived imines furnished the corresponding β-nitroamines in high yields and stereoselectivities, from which the corresponding 1,2-diamines were easily obtained. The synthetic utility of the sugar-derived 1,2-diamines in the preparation of iminosugars was illustrated in a concise synthesis of 6-amino-1,6-dideoxynojirimycin.
在催化铟的存在下,(对甲氧基苯基)亚胺,溴硝基烷和锌的组合可以直接获得β-硝基胺衍生物。手性糖衍生的亚胺的使用以高产率和立体选择性提供了相应的β-硝基胺,从中容易获得相应的1,2-二胺。在6-氨基-1,6-二脱氧野oji霉素的简明合成中说明了糖衍生的1,2-二胺在制备亚氨基糖中的合成效用。