Amino-functionalized CoFe2O4 magnetic nanoparticles as an efficient heterogeneous catalyst for benzaldehyde cyanosilylation

Abstract

Diaminosilane-functionalized cobalt spinel ferrite (CoFe₂O₄) magnetic nanoparticles were synthesized and used as an efficient heterogeneous base catalyst for the cyanosilylation reaction benzaldehyde with trimethylsilyl cyanide. The magnetic nanoparticle catalyst was characterized by X-ray powder diffraction (XRD), transmission electron microscope (TEM), thermogravimetric analysis (TGA), fourier transform infrared (FT-IR), nitrogen physisorption measurements. Quantitative conversion (>99%) was achieved under mild conditions. Recovery of catalyst was facilely achieved by magnetic decantation. The supported catalyst could be reused without significant degradation in catalytic activity.