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Title
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Magnetic core–shell titanium dioxide nanoparticles as an efficient catalyst for domino Knoevenagel– Michael-cyclocondensation reaction of malononitrile, various aldehydes and dimedone
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Type
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JournalPaper
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Keywords
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Knoevenagel– Michael-cyclocondensation nano
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Abstract
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Magnetic core–shell titanium dioxide nanoparticles (Fe3O4@SiO2@TiO2) were efficiently used for the preparation of tetrahydrobenzo[b]pyran derivatives via a one-pot three component condensation reaction of various aldehydes, dimedone and malononitrile at 100 C under solvent-free conditions. The catalyst was synthesized and characterized by several techniques including X-ray diffraction (XRD), transmission electron microscopy (TEM), field-emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDX).
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Researchers
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javad afsar (Fifth Researcher), ahmad reza moosavi-zare (Fourth Researcher), Vahid Khaki Zadeh (Third Researcher), Fatemeh Gholami (Second Researcher), Ardeshir Khazaei (First Researcher)
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