Preparation of 2- and 4-Arylmethyl <i>N</i>-Substituted and <i>N</i>,<i>N</i>-Disubstituted Anilines via a “Green”, Multicomponent Reaction
作者:Anthony E. Rosamilia、Janet L. Scott、Christopher R. Strauss
DOI:10.1021/ol0501828
日期:2005.4.14
[reaction: see text] A new, green, regioselective, one-step, multicomponent reaction of an aldehyde possessing a nonenolizable carbonyl function, cyclohex-2-enone (or a derivative thereof), and primary or secondary amines afforded 2-N-substituted arylmethyl anilines or 4-N,N-disubstituted arylmethyl anilines, respectively. Yields and regioselectivities were good. Evidence for a pathway involving imine
[反应:见正文]具有不可烯化的羰基官能团的醛,环己-2-烯酮(或其衍生物)与伯胺或仲胺的新的,绿色的,区域选择性的一步式多组分反应可得到2-N-取代的芳基甲基苯胺或4-N,N-二取代的芳基甲基苯胺。产率和区域选择性良好。提出了涉及亚胺和亚胺中间体的途径的证据,并举例说明了该方法对组合化学的适用性。