Magnetic CoFe₂O₄ Nanoparticles on Mn-BTC MOF for Applications as Catalysts for Multicomponent Syntheses

Remarkable progress in the field of organic synthesis has urged researchers to design catalytic systems that align with the principles of sustainability. Among these, metal–organic frameworks (MOF) have emerged as highly promising nanoscale catalytic materials owing to their abundant coordination sites and exceptional chemical as well as structural tunability in synthetic chemistry. Motivated by these unique attributes, we report the development of a nanoscale magnetic CoFe 2 O 4 /Mn-BTC composite via a solvothermal route. Comprehensive characterization using advanced techniques such as XRD, FTIR, TEM, FESEM, BET, TGA, EDX, XPS, VSM, and AAS provided detailed insights into the nanostructural, morphological, and magnetic features of the synthesized composite. The catalytic efficiency of the material was demonstrated in the synthesis of biologically important 1-[((5-methylbenzo[ d ]thiazol-2-yl)amino)(aryl)methyl)]naphthalen-2-ol derivatives, affording yields of up to 97% within remarkably short reaction times (15–30 min). Additional advantages include solvent-free conditions, broad functional group tolerance, use of readily available substrates, facile magnetic recovery, and recyclability up to five cycles, thereby establishing this methodology as both environmentally sustainable and economically viable for potential large-scale industrial applications.