Immobilized tris(8-quinolinolato)iron onto the silica coated magnetite nanoparticle: sustainable development for the sulfide oxidaiton reaction

The rapid progress of nanotechnology has enabled researchers to design and synthesis of uniform core-shell with magnetically responsive cores and functional shell at nano-scales 1. Amon core-shell nanostuctures, Fe3O4@SiO2 nanospheres have attracted considerable attention because of their unique geometry and espeical magnetic properties 2, 3. Herien, we have reported a green, robust and eco-friendly procedure for the oxidation of aromatic organic sulfides to sulfones using H2O2 catalyzed by NH2-coordinately immobilized tris(8-quinolinolato)iron onto the silica coated magnetite Fig 1. The catalytic activity Fe3O4@SiO2-FeQ3 for sulfides oxidation showed that this atom-economical protocol provided great conversion of various sulfones and allowed the sulfide function reaction conducting under the mild conditions thus to prevent the sulfide being over-oxidized to sulfoxides

Keywords:

Magnetic nanoparticle , Fe3O4@SiO2-FeQ3 , Sulfide oxidation