Developing NHC-Iridium Catalysts for the Highly Efficient Enantioselective Intramolecular Hydroamination Reaction
作者:Pengchao Gao、Gellért Sipos、Daven Foster、Reto Dorta
DOI:10.1021/acscatal.7b02508
日期:2017.9.1
introduced as catalysts for the intramolecular hydroamination reaction of unactivated aminoalkenes. The catalysts show high activity in the construction of pyrrolidines, which are accessed with excellent optical purity. Enantiomerically enriched piperidines and indolines are also produced, and various functional groups are tolerated with this LTM system. A reaction mechanism is proposed, and a major
引入手性阳离子NHC-铱络合物作为未活化氨基烯烃的分子内加氢胺化反应的催化剂。所述催化剂在吡咯烷的构造中显示出高活性,其以优异的光学纯度被获得。还生产了对映体富集的哌啶和二氢吲哚,该LTM系统可耐受各种官能团。提出了一种反应机理,并提出和讨论了这些催化剂的主要失活途径。