Selective oxidation of alcohols with H2O2 catalyzed by long chain multi-SO3H functionalized heteropolyanion-based ionic liquids under solvent-free conditions
•Two multi-SO3H functionalized heteropolyanion-based ionic liquids were prepared.•Ionic liquids exhibit high catalytic activities in selective oxidation of alcohols.•Oxidation was carried out with H2O2 aqueous as oxidant under solvent-free conditions.•Ionic liquids can be recovered and reused five times without loss in activities.
Two novel long chain multi-SO3H functionalized heteropolyanion-based ionic liquids were prepared and characterized. They as homogeneous catalysts showed high catalytic activity in selective oxidation of alcohols with 35% aqueous hydrogen peroxide under solvent-free conditions without adding any phase transfer catalyst. Two ionic liquids can be recovered readily and reused five times without any significant loss in their catalytic activities.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
Journal: Catalysis Communications - Volume 69, 5 September 2015, Pages 5–10