In this work, Fe2+ supported on hydroxyapatite-core–shell-γ-Fe2O3 nanoparticles (γ-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, γ-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, γ-Fe2O3–HAp-Fe2+ NPs were easily recycled from the reaction mixture and were reused seven times without any loss in activity.
Research on Chemical Intermediates – Springer Journals
Published: Oct 23, 2015
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