Abstract
Nano γ-Fe2O3@SiO2–AlCl2 is synthesized and applied as a recyclable catalyst for cost-effective synthesis of amidoalkyl naphthols, from aldehydes, 2-naphthols, and amides (or urea). This heterogeneous catalyst enhances product purity and can efficiently be removed by an external magnet. Characterization of the catalyst is carried out by SEM, XRD, ICP, TGA, and VSM. The thermal solvent-free procedure offers advantages such as shorter reaction times, simple work-ups, excellent yields, and reusability of the catalyst.
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Ghader, M., Kassaee, M.Z. Synthesis of amidoalkyl naphthols via AlCl3 functionalized silica-coated Fe2O3 magnetic nanoparticles as a new, efficient, and eco-friendly catalyst. J IRAN CHEM SOC 12, 979–985 (2015). https://doi.org/10.1007/s13738-014-0560-1
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DOI: https://doi.org/10.1007/s13738-014-0560-1