Magnetic Fe3O4-Chitosan Nanoparticles: an Efficient Heterogeneous Nanocatalyst for the Synthesis of 1,4-Dihydropyridines

Fe3O4 nanoparticles were synthesized by the chemical co-precipitation process. Then, the synthesizednanoparticles were modified with chitosan as a biocompatible polymer and its catalytic activity was investigated in thesynthesis of 1,4-dihydropyridines by a one-pot condensation of aldehyde derivatives, ethylacetoacetate and ammoniumacetate. High catalytic activity and ease of recovery using an external magnetic field are eco-friendly attributes of thismagnetic nanocatalyst.

Keywords:

Fe3O4 chitosan Fe3O4-chitosan nanoparticles magnetic nanocatalyst 1 , 4-Dihydropyridines