Syntheses of tetrahydropyrazolopyridines using ZnFe۲O۴ nanoparticles as a reusable magnetically catalyst

چکیده مقاله

Herein, we report the use of ZnFe2O4 nanoparticles as an efficient catalyst for the preparation of tetrahydropyrazolopyridines by the pseudo six-component reaction of hydrazine hydrate, ethyl acetoacetate, aldehydes and ammonium acetate under reflux condition in ethanol