A CONVENIENT SYNTHESIS OF NEW AMINOPYRROLOINDOLES VIA AN IMMINIUM SALT
Cyclization of pyrrolidinocarboxamide derivative of 2-(1-pyrrolyl) benzoic acid leads to an imminium salt which conduct to N-substitued 9-imino (and amino) 9H-pyrroloindoles.
Rault, S.,de Sevricourt, M. Cugnon,Godard, A. M.,Robba, M.