New reactivity patterns in activated indoles with 2-methyl substituents
作者:Ashley W. Jones、Tutik Dwi Wahyuningsih、Karin Pchalek、Naresh Kumar、David StC. Black
DOI:10.1016/j.tet.2005.08.048
日期:2005.10
3-aryl-2-methyl-4,6-dimethoxyindoles are reported. These compounds show typical electrophilic substitution and addition reactions at C7, but not oxidative dimerisation because of the reactivity of the 2-methyl group. This methyl group can be effectively oxidised to a carbaldehyde by seleniumdioxide, but formation of 7,7′-diindolylselenides also occurs.