Design and Characterization of Fe₃O₄@n-pr-NH₂@Zn₃(BTC)₂ Magnetic MOF : A Catalyst for Dihydropyrimidine and 2-Amino-4𝐻-Chromene Synthesis

In this study, a novel Fe₃O₄@n-Pr-NH₂@Zn₃(BTC)₂ magnetic metal-organic framework (MOF) was synthesized and thoroughly characterized using a range of analytical techniques, including Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDS/EDX), thermogravimetric analysis (TGA), and vibrating sample magnetometry (VSM). The morphology of the magnetic MOF was also examined using scanning electron microscopy (SEM). This magnetic MOF demonstrated excellent catalytic performance in the synthesis of dihydropyrimidines and 2-amino-4H-chromene derivatives under ethanol solvent and reflux conditions. Notably, the catalyst showcased impressive recyclability, maintaining its catalytic activity over five cycles without any significant loss in efficiency.