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the ability of ncp@pocl2-x core-shell magnetic nano-catalyst for simultaneous conversion of epoxides into cyanohydrin and α,β-unsaturated carboxylic acid
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نویسنده
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ebrahimzadeh farzaneh
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منبع
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journal of optoelectronical nanostructures - 2024 - دوره : 9 - شماره : 2 - صفحه:64 -78
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چکیده
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This paper presents a new environmental, and remarkably efficient heterogeneous magnetic nanocomposite, ncp@pocl2-x (fe3o4@sio2@cs@pocl2-x), designed for the regioselective production of cyanide compounds from epoxides using nacn, subsequently facilitating the synthesis of α,β-unsaturated carboxylic acids. the reactions were conducted under mild conditions, demonstrating the catalyst’s remarkable performance with high yields. the presence of pocl2-x and the influence of water and heat facilitated the transformation of epoxides into cyanohydrin and α,β-unsaturated carboxylic acids. remarkably, the reactions demonstrate excellent regioselectivity, producing clean and quantitative products. ncp@pocl2-x is a heterogeneous magnetic nanocatalyst with a strong magnetic core of fe3o4 surrounded by chitosan as a green layer and functionalized by the pocl2-x group. this catalyst can be easily separated using external magnetic force. the combination of heterogeneity, magnetic properties, easy recovery, and exceptional performance establishes ncp@pocl2-x as a valuable tool for efficient and selective transformations of epoxides.
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کلیدواژه
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β-unsaturated carboxylic acid ,cyanohydrin ,epoxide ,magnetic chitosan ,nanocatalyst
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آدرس
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islamic azad university, marvdasht branch, department of chemistry, iran. islamic azad university, shiraz branch, chemical, petroleum & polymer engineering research center, department of applied researches, iran
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پست الکترونیکی
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polychemfar1@gmail.com
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Authors
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