ABSTRACT. The synthesized Zeolite A/ZnCl2 nanoparticles via the hydrothermal route were characterized using FTIR, XRD, and SEM/EDAX techniques. catalyst was used for eco-friendly synthesis of 4,5-dihydro-pyrazole-1-carbothioamide derivatives. Under solvent-free conditions, a multi-component reaction between hydrazine, isothiocyanate, chalcone done with prepared nano-catalyst as an inexpensive, ...