A simple, facile and highly efficient one-pot synthesis of a pharmaceutically interesting diverse kind of functionalized 2-amino-4H-chromene is reported.

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A facile and efficient solvent-free protocol for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones by using Co@imine-Na+-MMT as a new, environmentally friendly and reusable heterogeneous catalyst is reported.

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Synthesis of highly substituted pyran derivatives using Zr@IL-Fe3O4 MNPs.

The synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives was accomplished via a three-component reaction in the presence of SO3H@imineZCMNPs as a novel, environment friendly, and reusable heterogeneous magnetic nanocatalyst under solvent-free conditions at 90 °C.

Polyhydroquinolines were obtained from a sequential four-component reaction between dimedone or 1,3-cyclohexandione, ethyl acetoacetate, or methyl acetoacetate as a β-ketoester, aldehydes, and ammonium acetate, with Mo@GAA-Fe3O4 MNPs as a green nanocatalyst.