Immobilized antimony species on magnetite: a novel and highly efficient magnetically reusable nanocatalyst for direct and gram-scale reductive-coupling of nitroarenes to azoarenes.

ABSTRACT: In this study, magnetic nanoparticles of Fe₃O₄@SbF _x from the immobilization of SbF₃ on magnetite were synthesized. The prepared nanocomposite system was then characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, vibrating sample magnetometry and inductively coupled plasma optical emission spectroscopy. Next, the catalytic activity of Fe₃O₄@SbF _x MNPs was highlighted by one-pot reductive-coupling of aromatic nitro compounds to the corresponding azoarene materials with NaBH₄. The reactions were carried out in refluxing EtOH within 6-25 min to afford the products in high yields. The reusability of t

SUBMITTER: Zeynizadeh B 

PROVIDER: S-EPMC9063975 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature