A one-pot, sequential, three-component procedure is reported for the synthesis of poly-substituted dihydropyridines
via the condensation reaction of diamines or aminophenoles, 1,1-bismethylmethio-2-nitroethylene and
α,β-unsaturated aromatic ketones in acetonitrile under reflux conditions. A range of fused and non-fused polysubstituted
dihydropyridines were prepared in good to high yields with short reaction times.