Substitution, oxidation and addition reactions at C-7 of activated indoles
作者:David St.C. Black、Michael C. Bowyer、Maria M. Catalano、Andrew J. Ivory、Paul A. Keller、Naresh Kumar、Stephen J. Nugent
DOI:10.1016/s0040-4020(01)89590-9
日期:1994.1
4,6-Dimethoxy-2,3-diphenylindole (1) undergoes acylation, bromination, oxidative coupling and acid-catalysed addition to aldehydes at C-7 to produce a range of 7-substituted indoles (3–11), the indolo-isatin (6), the 7,7′-bi-indolyls (14), (16), (18), and the 7,7′-di-indolylmethanes (20–31). Addition to cyclopentanone gave compound (32), while Michael addition to α,β-unsaturated ketones gave compound