作者:Jie Liu、Chao-Guo Cao、Hong-Bao Sun、Xia Zhang、Dawen Niu
DOI:10.1021/jacs.6b05288
日期:2016.10.12
Here we report an iridium-catalyzed asymmetric umpolung allylation of imines as a general approach to prepare 1,4-disubstituted homoallylic amines, a fundamental class of compounds that are hitherto not straightforward to obtain. This transformation proceeds by a cascade involving an intermolecular regioselective allylation of 2-azaallyl anions and a following 2-aza-Cope rearrangement, utilizes easily
在这里,我们报告了铱催化的亚胺不对称 umpolung 烯丙基化,作为制备 1,4-二取代的高烯丙基胺的一般方法,这是迄今为止不容易获得的一类基本化合物。这种转化通过涉及 2-氮杂烯丙基阴离子的分子间区域选择性烯丙基化和随后的 2-氮杂-Cope 重排的级联进行,利用容易获得的试剂和催化剂,耐受大量底物,并容易导致各种对映体富集,1,4 -二取代的高烯丙基伯胺。