作者:Juan Zhang、Zhi-Xiong Chen、Ting Du、Bing Li、Yonghong Gu、Shi-Kai Tian
DOI:10.1021/acs.orglett.6b02344
日期:2016.10.7
3]-sigmatropic rearrangement of quaternary allylic ammonium ylides via in situ activation of tertiary allylic amines with arynes under mild conditions. Using 2-(trimethylsilyl)aryl triflates as aryne precursors, a range of tertiary allylic amines bearing electron-withdrawing groups underwent [2,3]-sigmatropic rearrangement to furnish structurally diverse homoallylic amines in moderate to good yields. The reaction
已经建立了通过在温和条件下用芳烃原位活化叔烯丙基胺来[4,3]-σ重排季铵烯丙基铵的新策略。使用2-(三甲基甲硅烷基)芳基三氟甲磺酸酯作为芳烃前体,对一系列带有吸电子基团的叔烯丙基胺进行[2,3]-σ重排,以中等至良好的收率提供结构多样的均胺。该反应能够构建具有出色对映体纯度的四级立体中心和具有极高非对映选择性的官能化环丙烷。