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Sulfonic acid supported on Fe2O3/VO2 nanocatalyst: A highly efficient and reusable nanocatalyst for synthesis of spirooxindole derivatives

Journal: Asian Journal of Green Chemistry (Vol.2, No. 1)

Publication Date:

Authors : ;

Page : 59-69

Keywords : Fe2O3/VO2/SO3H; Spirooxindole; Isatin; 1; 3-Cyclohexadiene; Malonitrile;

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Fe2O3/VO2/SO3H nanocatalyst is reported for simple, and three-component reaction for the synthesis of spirooxindole derivatives by the reaction of isatin, 1,3-cyclohexadiene and malonitrile in solvent-free condition. The method allows easy construction of a library of spirooxindoles in moderate to good yields. The prepared nanocomposite was characterized using fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), x-ray diffraction (XRD) analysis, and energy dispersive x-ray spectroscopy (EDX). The nanocomposite was easily recovered using an external magnet and reused several times without a significant loss of the efficiency.

Last modified: 2018-01-28 14:48:40