The first practical and regioselective process for the synthesis of 2,3-disubstituted indoles from the reaction of o-iodoanilines or o-bromoanilines and their derivatives with symmetrical and unsymmetrical internal alkynes catalyzed by a ferrocene-functionalized N-heterocyclic carbene (NHC)âpalladium complex has been developed, and the indoles were isolated in good yields with high regioselectivity.
在
二茂铁官能化的 N-杂环碳烯(NHC)-
钯络合物催化下,首次开发出了从邻
碘苯胺或邻
溴苯胺及其衍
生物与对称和不对称内炔反应中合成 2,3-二取代
吲哚的实用且具有区域选择性的工艺,并以良好的产率和高区域选择性分离出了
吲哚。