New electrophilic reactions of 2,2′-bisindolyls with acid chlorides and carbodienophiles
作者:U. Pindur、Y.-S. Kim
DOI:10.1002/jhet.5570330317
日期:1996.5
Some new acylation and cyclization reactions of 2,2′-bisindolyls 1, 2 are described. The product patterns constitute acyl derivatives 3, 4, 5 and an aldehyde 7, indolo[2,3-a]carbazoles 6, 14, 17, 19, 20 and cyclopentadiindoles 22 and 24. In the reaction with aryne or diazotated anthranilic acid, a 3-benzoylindole derivative 9 and phenylindolyl azo dye 10 are formed. N-methylmaleimide reacts with 2
描述了2,2'-二吲哚基1、2的一些新的酰化和环化反应。的产品图案构成酰基衍生物3,4,5和醛7,吲哚并[2,3-一个]咔唑6,14,17,19,20和cyclopentadiindoles 22和24。在与芳烃或重氮化的邻氨基苯甲酸的反应中,形成3-苯甲酰基吲哚衍生物9和苯基吲哚基偶氮染料10。N-甲基马来酰亚胺通过迈克尔型加成,脱氢和环化反应与2,2'-二吲哚基2 反应成几种官能化或芳基化的吲哚衍生物分别为11、12、13和14。