Organocatalytic Cascade Reactions Based on Push−Pull Dienamine Platform: Synthesis of Highly Substituted Anilines
作者:Dhevalapally B. Ramachary、Kinthada Ramakumar、Vidadala V. Narayana
DOI:10.1021/jo0623639
日期:2007.2.1
novel one-pot organocatalytic selective process for the cascade synthesis of highly substituted o-hydroxydiarylamines and o-pyrrolidin-1-yldiarylamines is reported. Direct combination of amine-catalyzed cascade Knoevenagel/Michael/aldol condensation/decarboxylation and cascade enamine amination/isoaromatization of alkyl acetoacetates, aldehydes, and nitrosoarenes furnished the highly functionalized
报道了一种实用且新颖的一锅有机催化选择性方法,用于高度取代的邻羟基二芳基胺和邻吡咯烷基-1-基二芳基胺的级联合成。胺催化的级联Knoevenagel / Michael /醛醇缩合/脱羧与乙酰乙酸烷基酯,醛和亚硝基芳烃的级联烯胺胺化/异芳构化的直接结合提供了高官能度的苯胺,收率很高。