β-cyclodextrin coated Fe_3O_4 nanoparticles: A simple preparation and application for selective oxidation of alcohols in water

摘要

A magnetically separable catalyst was synthesized via a carbodiimide activation process with β-cyclodextrin functionalized by core-shell nanoparticles (Fe_3O_4/SiO_2/CM-β-CD). The catalyst presented high activity for selective oxidation of various alcohols with NaOCl as oxidant and water only as the solvent. A substrate-selective and transition metal-free process was achieved with easy separation of the catalyst.