Used as a reagent in organic synthesis, particularly in the Mitsunobu reaction, which is widely employed for the conversion of alcohols into esters, ethers, and other derivatives. It facilitates the formation of carbon-nitrogen and carbon-oxygen bonds, making it valuable in the production of pharmaceuticals, agrochemicals, and fine chemicals. Additionally, it serves as a dehydrogenating agent in the synthesis of heterocyclic compounds and as a radical initiator in polymerization processes. Its role in these reactions is crucial for achieving high yields and selectivity in complex molecular transformations.