Auto-Tandem Catalysis: Synthesis of Substituted 11H-Indolo[3,2-c]quinolinesvia Palladium-Catalyzed Intermolecular CN and Intramolecular CC Bond Formation
作者:Caroline Meyers、Geert Rombouts、Kristof T. J. Loones、Alberto Coelho、Bert U. W. Maes
DOI:10.1002/adsc.200700328
日期:2008.2.22
D-Ring substituted 11H-indolo[3,2-c]quinolines (4) have been prepared via auto-tandem consecutive intermolecular Buchwald-Hartwig reaction and intramolecular palladium-catalyzed arylation on 4-chloroquinoline (1) with N-unsubstituted 2-chloroanilines (2). The reported 11H-indolo[3,2-c]quinolines (4) represent the first examples in which tandem catalysis has been used to construct N-unsubstituted carbolines
D-Ring取代的11 H-吲哚并[3,2- c ]喹啉(4)是通过自动串联连续分子间Buchwald-Hartwig反应和分子内钯催化的4-氯喹啉(1)上的N-未取代的2芳基化反应制得的-氯苯胺(2)。报道的11 H-吲哚并[3,2- c ]喹啉(4)代表了第一个实例,其中串联催化已用于构建N-未取代的咔啉。