An Iridium(I) N-Heterocyclic Carbene Complex Catalyzes Asymmetric Intramolecular Allylic Amination Reactions
作者:Ke-Yin Ye、Qiang Cheng、Chun-Xiang Zhuo、Li-Xin Dai、Shu-Li You
DOI:10.1002/anie.201603266
日期:2016.7.4
A chiral iridium(I) N‐heterocyclic carbene complex was reported for the first time as the catalyst in the highly enantioselective intramolecular allylic amination reaction. The current method provides facile access to biologically important enantioenriched indolopiperazinones and piperazinones in good yields (74–91 %) and excellent enantioselectivities (92–99 % ee). Preliminary mechanistic investigations
首次报道了手性铱(I)N-杂环卡宾络合物作为高对映选择性分子内烯丙基胺化反应的催化剂。目前的方法提供了容易获得生物学上重要的对映体富集的吲哚哌嗪酮和哌嗪酮的方法,产率高(74-91%),对映选择性极好(92-99%ee)。初步的机理研究表明,CH活化发生在配体N-芳基邻位。