Abstract A facile access to differently substituted indoles using palladium catalyzed annulation reactions under microwave enhanced conditions has been achieved. A highly active and efficient catalytic system PdCl 2/(A-taphos) for the synthesis of indole via palladium catalyzed ring annulation of ortho iodo anilines and aldehydes has been developed.
[Chaskar, Atul; Deokar, Hrushikesh; Padalkar, Vikas; Phatangare, Kiran; Patil Journal of the Korean Chemical Society, 2010 , vol. 54, # 4 p. 411 - 413]