A One-Pot Access to [b]Annellated Carbazoles as Potential DNA Intercalators via Diels-Alder Reactions with 1-Alkylpyrano[3,4-b]indol-3-ones

Abstract

ALbstract -1-Alkylpyrano[3.4-blindol-3-ones(3) react via a Diels-Alder process with arynes or Wphenylmaleimide to furnish [blannellated carbazoles (4-10) in a one-pot procedure.Compounds (4-8) with a coplanar framework belong to the class of potential DNA intercalators.