عنوان
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Silica sulfuric acid-coated Fe3O4 nanoparticles as high reusable nanocatalyst for the oxidation of sulfides into sulfoxides, protection and deprotection of hydroxyl groups using HMDS and Ac2O
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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, Silica sulfuric acid, Sulfide, alcohol, Sulfoxide, Trimethylsilylation, Acetylation ; ;
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چکیده
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Oxidation of sulfides, acetylation of alcohols and phenols and selective trimethylsilylation of primary and secondary benzyl alcohols are carried out using silica sulfuric acid-coated Fe3O4 magnetic nanoparticles (SSA@MNPs) as a stable, efficient and magnetically recoverable nanocatalyst. Also, deprotection of silyl ethers was reported in ethanol at room temperature in the presence of SSA@MNPs as a magnetic nanocatalyst. The magnetic nanocatalyst was characterized by FT-IR spectroscopy, TGA, XRD and SEM techniques. The catalyst was easily separated with the assistance of an external magnetic field from the reaction mixture and reused for several consecutive runs without significant loss of its catalytic efficiency.
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پژوهشگران
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داریوش مرادی (نفر ششم به بعد)، یحیی نواسی (نفر پنجم)، فراست شریفی (نفر چهارم)، بهمن طهماسبی (نفر سوم)، آرش قربانی چقامارانی (نفر دوم)، امین رستمی (نفر اول)
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