عنوان
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DABCO tribromide immobilized on magnetic nanoparticle as a recyclable catalyst for the chemoselective oxidation of sulfide using H2O2 under metal- and solvent-free conditions
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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Magnetic nanoparticles, 1,4-Diazabicyclo[2.2.2] octane tribromide, Nanocatalyst, Hydrogen peroxide, Sulfides, Sulfoxides
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چکیده
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Magnetic nanoparticle-supported 1,4-diazabicyclo[2.2.2] octane tribromide (MNPs-DABCO tribromide) as a bromine source was readily prepared and characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM) techniques. The catalytic activity of MNPs-DABCO tribromide was investigated in the chemoselective oxidation of sulfides to sulfoxides using 30% H2O2as an oxidant at room temperature under solvent-free conditions. The heterogeneous catalyst could be recovered easily and reused 15 times without significant loss of its catalytic activity.
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پژوهشگران
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آرش قربانی چقامارانی (نفر چهارم)، داریوش مرادی (نفر سوم)، یحیی نواسی (نفر دوم)، امین رستمی (نفر اول)
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