Abstract A green procedure for the one-pot three-component synthesis of 1-amidoalkyl-2-naphthol and 3-amino-1-phenyl-1H benzo[f]chromene-2-carbonitrile derivatives from the reaction of 2-naphtol, aldehydes, and malononitrile/acetamide in the presence of a catalytic amount of Fe3O4@enamine-B(OSO3H)2 as an efficient and novel heterogeneous magnetic nanostructure catalyst is described. The catalyst was characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). These strategies possess some merits such as simple work-up method, easy preparation of the catalyst, short reaction times, good-to-high yields, and non-use of hazardous solvents during all steps of the reactions. Moreover, due to the magnetic nature of the catalyst, it was readily recovered by magnetic decantation and can be recycled at least six runs with no considerable decrease in catalytic activity.

中文翻译：

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Fe3O4@enamine-B(OSO3H)2无溶剂合成1-酰胺基烷基-2-萘酚和3-氨基-1-苯基-1H苯并[f]色烯-2-腈衍生物作为一种高效、新型的异质磁性纳米结构催化剂

摘要 由 2-萘酚、醛类反应合成 1-酰胺基烷基-2-萘酚和 3-氨基-1-苯基-1H 苯并[f]色烯-2-腈衍生物的一锅三组分绿色程序和丙二腈/乙酰胺在催化量的 Fe3O4@enamine-B(OSO3H)2 存在下作为一种有效和新型的非均相磁性纳米结构催化剂进行了描述。使用傅里叶变换红外光谱 (FTIR)、热重分析 (TGA)、振动样品磁强计 (VSM)、能量色散 X 射线光谱 (EDX) 和 X 射线衍射 (XRD) 对催化剂进行表征。这些策略具有一些优点，例如后处理方法简单、催化剂易于制备、反应时间短、产率由高到高以及在反应的所有步骤中不使用有害溶剂。而且，