synthesis, characterization, and application of cofe₂o₄@sio₂@cptes@melamine nanoparticles as a magnetic catalyst for the synthesis of pyrazole derivatives

In this work, an efficient procedure for the synthesis of pyrazole derivatives via a one-pot multi-component reaction of phenyl hydrazine, malanonitrile, and various aromatic aldehydes using cofe2o4@sio2@cptes@melamine as a magnetic nanocatalyst in water under room temperature conditions is reported. this nanocatalyst was synthesized in several steps and identified by various techniques including fourier-transform infrared (ft-ir), scanning electron microscopy (sem), energy dispersive x-ray (edx), thermogravimetric analysis (tga), x-ray diffraction (xrd), and vibrating sample magnetometer (vsm) techniques. the advantages of using this magnetic nanocatalyst in this research include easy synthesis, efficiency, non-toxicity, high-efficiency product production, short reaction time, and reusability.