Rhodium-catalyzed Synthesis of Benzo[<i>b</i>]thiophene-3-carboxamides via Cyclization of (<i>ortho</i>-Alkynyl)phenyl Sulfides in the Presence of Isocyanates
A facile synthesis of benzo[b]thiophene-3-carboxamides from (ortho-alkynyl)phenyl methoxymethyl sulfides and isocyanates was realized. The method involves a tandem-type, cyclization–addition sequen...
A simple change of the ligand and solvent allows controlled, effective switching between cyclization–carbonylation–cyclization-coupling (CCC-coupling) and cyclization–carbonylation reactions.
Palladium(II) Catalyzed Cyclization-Carbonylation-Cyclization Coupling Reaction of (ortho-Alkynyl Phenyl) (Methoxymethyl) Sulfides Using Molecular Oxygen as the Terminal Oxidant
system was developed that uses environmentally friendly molecular oxygen as the terminal oxidant to catalyze the cyclization-carbonylation-cyclization coupling reaction (CCC-coupling reaction) of (o-alkynyl phenyl) (methoxymethyl) sulfides.