Hassan Hassani - Department of Chemistry, Payam Noor University, Birjand, Iran
Batol Zakerinasab - Department of Chemistry, Payam Noor University, Birjand, Iran
Azadeh Nozarie - Department of Chemistry, Payam Noor University, Birjand, Iran

Fe۲O۳/VO۲/SO۳H nanocatalyst is reported for simple, and three-component reaction for the synthesis of spirooxindole derivatives by the reaction of isatin, ۱,۳-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.

Fe۲O۳/VO۲/SO۳H Spirooxindole Isatin ۱, ۳-Cyclohexadiene Malonitrile