Tetrapropylammonium perruthenate is widely used as a catalyst in organic synthesis, particularly in oxidation reactions. It is highly effective for the selective oxidation of alcohols to aldehydes or ketones without over-oxidizing to carboxylic acids. This reagent is often employed in the Ley-Griffith oxidation, a mild and efficient method for transforming primary and secondary alcohols into their corresponding carbonyl compounds. Its stability and ease of handling make it a preferred choice in laboratory settings. Additionally, it is utilized in the synthesis of complex molecules, including pharmaceuticals and fine chemicals, where precise control over oxidation states is critical. Its compatibility with various functional groups further enhances its utility in multi-step synthetic processes.