Microwave-Assisted Multicomponent Reactions of Alkyl Bromides: Synthesis of Thiophene Derivatives

A series of thiophene derivatives were synthesized via one-pot multicomponent reactions of alkyl bromids, aroyl or alkanoyl isothiocyanates, 1,3-dicarbonyl compounds and secondary amins under microwave irradiation at 80 °C. Particularly valuable features of this method include high yields of products, broad substrate scope, short reaction time and straightforward procedure.