Efficient and eco-friendly synthesis of Hantzsch’s 1,4-dihydropyridines by recyclable organocatalyst N-(phenylsulfonyl)benzene sulfonamide

[Display omitted] •Efficient, rapid, and environmentally friendly 1,4-Dihydropyridine.•High yields, short reaction time, and simple work-up procedure.•Method tolerates a variety of functional groups with wide substrate scope.•Recycle catalyst, eco-friendly solvent. A simple, inexpensive, and efficient synthesis of 1,4-dihydropyridines in good yield in the presence of an organocatalyst N-(phenylsulfonyl)benzene sulfonamide in an eco-friendly solvent at 75 °C is described. The key advantages of the present method are high yields, short reaction time, easy workup, catalyst recycling, and reusability, which gives economic and ecological rewards at a mild temperature.