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Title
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Ultrasound promoted facile one pot synthesis of highly substituted pyran derivatives catalyzed by silica-coated magnetic NiFe2O4 nanoparticle-supported H14[NaP5W30O110] under mild conditions
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Type
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JournalPaper
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Keywords
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one pot synthesis, substituted pyran, silica-coated magnetic NiFe2O4 nanoparticle, supported H14[NaP5W30O110],
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Abstract
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Silica-coated magnetic NiFe2O4 nanoparticle-supported Preyssler heteropolyacid (H14[NaP5W30O110]) catalyzed efficiently the synthesis of highly substituted pyran derivatives under ultrasonic irradiation at room temperature in ethanol. In comparison with conventional methods, our protocol is convenient and offers several advantages, such as shorter reaction times, higher yields, milder conditions and environmental friendliness. The catalyst can be recovered by a simple external magnet and used four times without a significant loss of catalytic activity.
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Researchers
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Amir Khojastehnezhad (Fifth Researcher), Reza Tayebee (Fourth Researcher), Sedigheh Ayazi Jannat Abadi (Third Researcher), Mehdi Baghayeri (Second Researcher), Behrooz Maleki (First Researcher)
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