Synthesis, characterization, and catalytic application of Fe 3 O 4 ‐Si‐[CH 2 ] 3 ‐N=CH‐aryl for the efficient synthesis of novel poly‐substituted pyridines

Fe 3 O 4 magnetic nanoparticles (MNPs) were functionalized by aminopropylsilane and reacted with aromatic aldehyde, and Fe 3 O 4 ‐Si‐[CH 2 ] 3 ‐N=CH‐Aryl and Fe 3 O 4 ‐Si‐(CH 2 ) 3 ‐NH‐CH 2 ‐Aryl MNPs were prepared as novel magnetic nanocatalysts. Fourier transform infrared (FT‐IR), X‐ray diffraction (XRD), and scanning and transmission electron microscopy (SEM and TEM) were used to identify the MNPs. The catalytic activity of the MNPs was evaluated in the one‐pot synthesis of some novel poly‐substituted pyridine derivatives.