Synthesis of pyrido[2,3‐ d :5,6‐ d ′]dipyrimidines using CuFe 2 O 4 /KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

In this research, the synthesis of pyrido[2,3-d:5,6-d/]dipyrimidines by CuFe2O4/KCC-1/PMA magnetic nanoparticles was reported. Synthesis of pyrido[2,3-d:5,6-d/]dipyrimidines was performed under solvent-free conditions with good to excellent yields. The prepared nanocatalyst was synthesized in three steps and also was characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), vibrating sample magnetometry (VSM) and N2 adsorption–desorption measurement (BET) analyses. In addition, the reusability studies of CuFe2O4/KCC-1/PMA showed that the recovered catalyst could be used for several times.