Copper-Catalyzed Tandem Synthesis of Indolo-, Pyrrolo[2,1-<i>a</i>]isoquinolines, Naphthyridines and Bisindolo/Pyrrolo[2,1-<i>a</i>]isoquinolines via Hydroamination of <i>ortho</i>-Haloarylalkynes Followed by C-2 Arylation
作者:Akhilesh K. Verma、Rajeev R. Jha、Ritu Chaudhary、Rakesh K. Tiwari、Kotla Siva K. Reddy、Abhinandan Danodia
DOI:10.1021/jo301572p
日期:2012.9.21
An efficient approach for the copper-catalyzed regioselective tandem synthesis of diversely substituted indolo[2,1-a]isoquinolines 11a–r, pyrrolo[2,1-a]isoquinolines 12a–d, and indolo-, pyrrolo[2,1-f][1,6]naphthyridines 14a–f via preferential addition of the heterocyclic amines onto the ortho-haloarylalkynes over N-arylation followed by intramolecular C-2 arylation is described. The scope of the developed
一种铜取代的吲哚并[2,1- a ]异喹啉11a – r,吡咯并[ 2,1 - a ]异喹啉12a – d和吲哚- ,吡咯并[2,1- ]铜催化区域选择性串联合成的有效方法。描述了通过优先将杂环胺加到邻-卤代芳基炔烃上而不是N-芳基化然后分子内C-2芳基化的f ] [1,6]萘啶14a - f。所开发化学方法的范围已成功扩展到直接合成双吲哚-,吡咯并[2,1- a ]异喹啉15a– g是双吲哚并[1,2- a ]喹啉的区域异构体,用作有机单晶场效应晶体管。羟甲基苯并三唑是一种廉价且空气稳定的化合物,已被用作配体,可将简单,易于获得的起始原料一步转化为一类有趣的杂环化合物。