负载在磁性聚杯[4]间苯二酚芳烃-乙二胺四乙酸-壳聚糖网络上的磷钼酸作为合成5-芳酰基-NH-1,3-恶唑烷-2-酮的可循环催化剂。
Phosphomolybdic acid supported on magnetic poly calix[4]resorcinarene-EDTA-chitosan network as a recyclable catalyst for the synthesis of 5-aroyl-NH-1,3-oxazolidine-2-ones.
作者信息
Moradi Setareh, Mozafari Roya, Ghadermazi Mohammad
机构信息
Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj, Iran.
出版信息
Sci Rep. 2024 Jun 4;14(1):12865. doi: 10.1038/s41598-024-63493-y.
Abstract
In this work, a novel procedure for immobilization of phosphomolybdic acid (PMA) on Magnetic polycalix[4]resorcinarene grafted to chitosan by EDTA (calix-EDTA-Cs) was reported. The heterogeneous nanocomposite (CoFeO@calix-EDTA-Cs@PMA) was applied an acid nanocatalyst for the synthesis of 5-aroyl-NH-1,3-oxazolidine-2-ones through the reaction of α-epoxyketones with sodium cyanate (NaOCN) in polyethylene glycol (PEG) as a green solvent under ultrasonic irradiation conditions. Some features of this work include quick reaction time, high reaction yield, easy separation of the catalyst, thermal stability, and eco-friendly.
摘要
在本工作中，报道了一种通过乙二胺四乙酸（EDTA）将磷钼酸（PMA）固定在接枝到壳聚糖上的磁性聚杯[4]间苯二酚芳烃（杯-EDTA-Cs）上的新方法。将该多相纳米复合材料（CoFeO@杯-EDTA-Cs@PMA）用作酸性纳米催化剂，在超声辐射条件下，以聚乙二醇（PEG）作为绿色溶剂，通过α-环氧酮与氰酸钠（NaOCN）反应合成5-芳酰基-NH-1,3-恶唑烷-2-酮。这项工作的一些特点包括反应时间短、反应产率高、催化剂易于分离、热稳定性好以及环境友好。
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