Synthesis of indolo[2,3-a]pyrrolo[3,4-c]carbazoles by oxidative cyclization of bisindolylmaleimides with a rhodium(III)-copper(II) catalytic system

Article abstract of DOI:10.1055/s-2005-869977

A novel catalytic protocol for the synthesis of a series of indolo[2,3-a]pyrrplo[3,4-c]carbazoles based on the bimetallic system RhCl ₃·3H₂O and Cu(OAc)₂·H ₂O in the presence of molecular oxygen was investigated