View related articles View Crossmark data Citing articles: 1 View citing articles Ultrasound-promoted green synthesis of 1,4-dihydropyridines using fuctionalized MWCNTs as a highly efficient heterogeneous catalyst

Herein, we successfully prepared a new heterogeneous catalyst for the synthesis of some 1,8-dioxodecahydroacridine derivatives. The catalyst was prepared through the loading of KCC-1 nanoparticles on graphene oxide (to prevent the agglomeration of KCC-1 nanoparticles and extended the surface area), and the immobilization of Ni(II) on GO/KCC-1 was done using a simple procedure.The structure of catalyst was characterized using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), energy-dispersive X-ray (EDX), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), elemental mapping, and thermogravimetric analysis (TGA) techniques. One-pot pseudo-four-component reaction for the synthesis of 1,8-dioxodecahydroacridines was performed under green conditions, and products were obtained in good to excellent yields. The structure of 1,8-dioxodecahydroacridines was confirmed with FTIR, 1 H NMR, and 13 C NMR. Easy recovery and reusability of the catalyst, green conditions, short reaction times with high yield of products, and high-efficient catalyst are some advantages of presented method.

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Herein, magnetic mesoporous N-doped silica nanospheres decorated by CuO nanoparticles (M-MNS/CuO) were prepared and used for the green and efficient synthesis of some [3.3.3] propellane indeno[1,2-b] indole derivatives.

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