Molecular Oxygen as an Oxidant

In contrast to the Jones reagent, recent developments in catalysis have allowed oxidation reactions to use molecular oxygen as an oxidizing agent in the presence of a palladium catalyst. Only a small amount of molecular oxygen needs to be used because of the catalyst, and additionally, the molecular oxygen is safe for the environment.

The oxidation of an alcohol to a ketone by both the Jones reagent (above) and molecular oxygen with a palladium catalysts (below).