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Title
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In situ stabilization of Pd(0) nanoparticles into a mixture of natural carbohydrate beads: A novel and highly efficient heterogeneous catalyst system for Heck coupling reactions
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Type
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JournalPaper
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Keywords
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gum arabic, Mizoroki–Heck reaction, palladium nanoparticles, pectin, solvent‐free
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Abstract
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A convenient, mild and cost-effective synthesis of palladium nanoparticles stabilized by a mixture of natural carbohydrate beads (gum arabic and pectin) as a new bio-organometallic catalyst is reported. Powder X-ray diffraction, transmission and scanning electron microscopies and energy-dispersive X-ray and UV–visible spectroscopies were employed to characterize this supported Pd nanoparticles/gum arabic/pectin catalyst. The nanocatalyst exhibited efficient activity in Mizoroki–Heck cross-coupling reactions between various aryl halides and n-butyl acrylate under solvent-free conditions. The catalyst can easily be recovered from the reaction system and reused several times with high yields. The products were obtained in short reaction times with excellent yields.
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Researchers
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(Fourth Researcher), Ardeshir Khazaei (Third Researcher), ameneh arabi (Second Researcher), sadegh rahmati (First Researcher)
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