| نویسندگان | محمد قنبری,سعید یزدان ستا,ندا ملاکریمی دستجردی |
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| همایش | دومین سمینار شیمی کاربردی ایران |
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| تاریخ برگزاری همایش | ۲۰۱۷-۸-۲۷ |
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| محل برگزاری همایش | زنجان |
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| نوع ارائه | سخنرانی |
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| سطح همایش | ملی |
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چکیده مقاله
The SBA-15@Triazine/H5PW10V2O40 as a novel nanocatalyst was prepared by the immobilization of the heteropolyacid onto the surface of functionalized SBA-15 mesoporous silica with triazine linker and characterized by using infrared spectroscopy (IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), electron dispersive X-ray (EDX), and heat-gravimetric (TGA). Its application for the multi-component synthesis of polysubstituted pyridines has been developed by using the one-pot, four-component coupling reactions of aromatic aldehydes, cyclic ketones, malononitrile, and ammonium acetate under microwave irradiation in high yields. This procedure has the advantages of short reaction time, high yields, and environmentally friendly. The novel catalyst can be readily recovered after the reaction and reused without any loss of its catalytic activity. This protocol is developed as a safe, cost-effective and convenient alternate method for the synthesis of 2-amino-3-cyanopyridine derivatives utilizing an ecofriendly, and a highly reusable catalyst.