Conversion of tertiary alcohols to tert-alkyl azides by way of quinone-mediated oxidation–reduction condensation using alkyl diphenylphosphinites
作者:Kiichi Kuroda、Yujiro Hayashi、Teruaki Mukaiyama
DOI:10.1016/j.tet.2007.03.176
日期:2007.7
A novel method for the preparation of alkyl azides from alcohols by way of oxidation–reduction condensation is described. In this reaction, the sterically-hindered tert-alkyl phosphinites that are prepared from the corresponding alcohols are converted into tert-alkyl azides with almost complete inversion of their stereochemistry: the obtained alkyl azides are then successfully reduced to afford the
描述了一种通过氧化还原缩合反应从醇类制备烷基叠氮化物的新方法。在该反应中,将由相应的醇制得的空间受阻的叔烷基次膦酸酯转化为叔烷基叠氮化物,几乎完全颠倒了它们的立体化学:然后将所获得的烷基叠氮化物成功地还原,以进行相应的胺处理。因此,建立了LiAlH 4,其由相应的手性醇制备手性胺的通用方法。