Multicomponent Cascade Reactions: A Novel and Expedient Approach to Functionalized Indoles by an Unprecedented Nucleophilic Addition-Heterocyclization-Oxidative Alkoxycarbonylation Sequence
作者:Bartolo Gabriele、Lucia Veltri、Giuseppe Salerno、Raffaella Mancuso、Mirco Costa
DOI:10.1002/adsc.201000642
日期:2010.12.17
A novel multicomponent cascade process is reported, based on the sequential combination between an initial nucleophilic attack step to an imine moiety and a palladium-catalyzed oxidative heterocyclization-alkoxycarbonylation process. By this new process, five simple molecules [2-alkynylaniline imines, alcohol (ROH), carbon monoxide (CO), alcohol (ROH), and oxygen (O2)] are sequentially activated, selectively
据报道,基于对亚胺部分的初始亲核攻击步骤与钯催化的氧化杂环-烷氧羰基化过程之间的顺序组合,提出了一种新颖的多组分级联过程。通过这一新方法,五个简单分子[2-炔基苯胺亚胺,醇(ROH),一氧化碳(CO),醇(ROH)和氧(O 2)]被依次激活,选择性地导致高附加值的功能化吲哚一次操作中的派生。