In this work, Fe2? supported on hydroxyapatite-core–shell-c-Fe2O3
nanoparticles (c-Fe2O3–HAp-Fe2? NPs) has been prepared and characterized by
Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron
microscopy, scanning electron microscopy, and vibrating sample magnetometry
spectra. Then, c-Fe2O3–HAp-Fe2? NPs were used as an efficient, reusable and
heterogeneous nanocatalyst for one-pot synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes via the one-pot condensation reaction of arylaldehydes and 2-naphthol under
solvent-free conditions in good to excellent yields. This procedure has a lot of
advantages such as very easy reaction conditions, simplicity in operation, short
reaction time, high yield, and green aspects by avoiding toxic conventional catalysts
and solvents. Additionally, c-Fe2O3–HAp-Fe2? NPs were easily recycled from the
reaction mixture and were reused seven times without any loss in activity.
کلید واژگان :
c-Fe2O3–HAp-Fe2? Magnetic nanoparticle 14H-dibenzo[a,j]xanthenes Lewis acid Nanocatalyst Reusable catalyst
