Abstract

Cu–S‐(propyl)‐2‐aminobenzothioate supported on functionalized Fe3O4 magnetic nanoparticles is reported as a reusable and highly efficient nanocatalyst for the one‐pot synthesis of polyhydroquinoline derivatives and also for selective oxidation of sulfides to sulfoxides. The prepared nanoparticles were characterized using Fourier transform infrared spectroscopy, vibrating sample magnetometry, thermogravimetric analysis, transmission and scanning electron microscopies, energy‐dispersive X‐ray spectroscopy, X‐ray diffraction, inductively coupled plasma atomic emission spectroscopy and atomic absorption spectroscopy. The nanocatalyst was easily recovered using an external magnet and reused several times without significant loss of its catalytic efficiency. Copyright © 2016 John Wiley & Sons, Ltd.

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