Succinimide-N-sulfonic acid catalyzed synthesis of bis(indolyl)methane and coumarin derivatives under mild conditions

A mild and simple procedure is described for the synthesis of bis(indolyl)methane and coumarin derivatives using succinimide-N-sulfonic acid as an efficient, cheap, and reusable catalyst under mild conditions.

Graphical AbstractThe present article describes the applicability of succinimide-N-sulfonic acid (SuSA), as a newly reported catalyst, in the promotion of the synthesis of bis(indolyl)methanes and coumarin derivatives. All reactions are performed under mild conditions in good to high yields.Figure optionsDownload full-size imageDownload as PowerPoint slide