Abstract
A novel palladium-based catalysts supported on Fe3O4/ZnO nanoparticles have been prepared by a simple method. The catalyst was characterized by transmission electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy, atomic absorption spectrophotometry, FT-IR, and BET analysis. The catalyst afforded efficient synthesis of 2-oxazolines and benzoxazoles from aromatic nitriles under solvent-free conditions. The significant features of this method are short reaction times, good to high yields of the products, simple operation, solvent-free condition, non-toxicity, reusability of the catalyst without significant loss of catalytic activity, and using ultra small amount of Pd (0.004 g of catalyst contains 9.16 × 10−3 mmol Pd which was determined by ICP).
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Acknowledgements
We gratefully acknowledge the support of this work by the Shiraz University. We are also grateful to Mr. H. Sajedian Fard for helpful cooperation.
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Hosseini-Sarvari, M., Khanivar, A. & Moeini, F. Magnetically recoverable nano Pd/Fe3O4/ZnO catalyst: preparation, characterization, and application for the synthesis of 2-oxazolines and benzoxazoles. J Mater Sci 50, 3065–3074 (2015). https://doi.org/10.1007/s10853-015-8866-7
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DOI: https://doi.org/10.1007/s10853-015-8866-7