Vijay Nair, G; Vidya, N; Abhilash, K G; Suresh, E
(Royal Society of Chemistry, 2008)
A mild and efficient one pot method for the synthesis of indolo[3,2-a] carbazole derivatives by the para-toluenesulfonic acid catalyzed condensation of indole with acyclic 1,2-diones is described. With cyclobutene-1,2-diones ...