Oxidation of refractory sulfur-containing compounds with molecular oxygen catalyzed by vanadoperiodate

Abstract

A new vanadoperiodate [HIV₉O₂₈]³⁻ has been synthesized by a simple, one-pot stoichiometric reaction of HIO₄·2H₂O with NaVO₃ in aqueous solution and then isolated as [C₈H₁₇N(CH₃)₃]₃HIV₉O₂₈ by cation exchange. We have found that [C₈H₁₇N(CH₃)₃]₃HIV₉O₂₈ shows high catalytic activity in the oxidation of refractory sulfur-containing compounds to their corresponding sulfones using molecular oxygen as oxidant under mild reaction conditions.