Based on the regioselective intermolecular Suzuki coupling and subsequent intramolecular Ullmann coupling reactions, one-pot synthesis of benzo[4,5]thieno[3,2-b]benzofurans (BTBFs) has been developed.
Pd(ii)–Ag(i) catalysed, highly efficient synthesis of diindolylmethanes under mild reaction conditions, with six new bonds being formed in a one-pot fashion, and the products being transformed into synthetically useful compounds.