Ruthenium-Catalyzed Intramolecular Hydroarylation of Arenes and Mechanistic Study: Synthesis of Dihydrobenzofurans, Indolines, and Chromans
作者:Raja K. Rit、Koushik Ghosh、Rajib Mandal、Akhila K. Sahoo
DOI:10.1021/acs.joc.6b01734
日期:2016.9.16
A ruthenium-catalyzed, amide-directed intramolecular hydroarylation of alkene-tethered benzamide derivatives is discussed. This method proficiently constructs dihydrobenzofuran, indoline, and chroman skeletons of biological significance in good to excellent yields; the overall process is atom-economical and step-efficient. The reaction exhibits broad scope, tolerating common functional groups, labile
讨论了钌催化的,酰胺键合的烯烃系苯甲酰胺衍生物的分子内氢芳基化反应。该方法能够以良好或优异的产率熟练地构建具有生物学意义的二氢苯并呋喃,二氢吲哚和苯并二氢吡喃骨架。整个过程是原子经济且高效的。该反应显示出宽泛的范围,可耐受常见的官能团,不稳定的保护单元和杂芳基基序。使用催化量的碱就足够了。氘加扰和动力学研究为理解反应机理提供了有价值的事实。