Biphasic Aerobic Oxidation of Alcohols Catalyzed by Poly(ethylene glycol)-Stabilized Palladium Nanoparticles in Supercritical Carbon Dioxide

摘要

The aerobic oxidation of alcohols to aldehydes and ketones is a fundamental chemical transformation for the production of a large variety of important intermediates and fine chemical products.Catalytic methods for this reaction are being investigated intensively to replace stoichiometric oxidation processes that generate large amounts of heavy metal and solvent waste.Among the transition metals,palladium shows very promising catalytic properties in the form of complexes,heterogeneous metal catalysts,or nanoparti-cles.