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Heterogeneous graphene oxide as recyclable catalyst for azomethine ylide mediated 1,3 dipolar cycloaddition reaction in aqueous medium

机译:非均相氧化石墨烯作为可循环催化剂在水性介质中偶氮甲内酯介导的1,3偶极环加成反应

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摘要

Graphene oxide (GO) catalysed multi component reaction of azomethine ylide driven 1,3 dipolar cycloaddition reaction in aqueous ethanolic solution is reported for the first time. This strategy has been applied for the synthesis of poly heterocyclic spiro-indenoquinoxaline pyrrolizidines and spiro-oxindoles pyrrolizidines with good to excellent yield along with excellent regio and diastereoselectivity. An ultra-low catalyst loading of 0.50?wt% was found to be efficient to catalyse the reaction.
机译:首次报道了在乙醇水溶液中氧化石墨烯(GO)催化的甲亚胺叶立德驱动的1,3偶极环加成反应的多组分反应。该策略已被用于合成具有良好或优异的收率以及优异的区域和非对映选择性的多杂环螺-茚并喹喔啉吡咯并核苷和螺-羟吲哚吡咯并核苷的合成。发现0.50wt%的超低催化剂负载量对催化反应是有效的。

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