Oxidation of <i>N</i>,<i>N</i>-Disubstituted Hydroxylamines to Nitrones with Hypervalent Iodine Reagents
作者:Camilla Matassini、Camilla Parmeggiani、Francesca Cardona、Andrea Goti
DOI:10.1021/acs.orglett.5b02029
日期:2015.8.21
Hypervalent iodine compounds are viable reagents for the oxidation of N,N-disubstituted hydroxylamines to the corresponding nitrones, with IBX performing best. The procedure is very simple and user-friendly and affords the target compounds with high efficiency and regioselectivity, highlighting IBX as the reagent of choice for preparation of aldonitrones from nonsymmetric hydroxylamines. Evidence for
高价碘化合物是将N,N-二取代的羟胺氧化为相应的硝酮的可行试剂,而IBX表现最佳。该方法非常简单且易于使用,可为目标化合物提供高效和区域选择性,突出了IBX作为从非对称羟胺制备醛酮的选择试剂。已经收集了涉及氮与碘配位的机理的证据。