Marcelo S. Franco

TL;DR: A greener protocol for the synthesis of 3-Se/S-indoles and imidazo[1,2-a]pyridines through direct C(sp2 )-H bond chalcogenation of heteroarenes with half molar equivalents of different dichalCogenides, using KIO3 as a non-toxic, easy-to-handle catalyst and a stoichiometric amount of glycerol.

TL;DR: The highly efficient Rose Bengal-catalysed C(sp2)-H selenylation of indoles, imidazoles and arenes was achieved using a half molar equiv.

TL;DR: In this paper, the NH4I-catalyzed C H bond chalcogenation of N-heteroaryls in the presence of a minimum amount of DMSO/H2O/acetic acid as additives was described.

TL;DR: A greener protocol for the one-pot synthesis of 3-Se/S-4H-chromen-4-ones using 2-hydroxyphenyl enaminones and half equivalents of various odorless diorganyl dichalcogenides (S/Se) in the presence of glycerol and KIO3 under solvent-free conditions.

TL;DR: An efficient, rapid and benign protocol for the direct C(sp2)–H bond halogenation of 2-arylimidazo[1,2-a]pyridines using trihaloisocyanuric acids in ethanol was successfully extended to imidazopyrimidine,Imidazothiazole and indazole heterocycles showing the broadness of this useful approach.