Used as a highly selective reagent in organic synthesis for the introduction of bulky phosphinic groups, enabling the formation of sterically hindered organophosphorus compounds. Its adamantyl groups enhance stability and influence reactivity, making it valuable in the development of pharmaceuticals, agrochemicals, and ligands for catalysis. Particularly useful in creating phosphorus-containing bioactive molecules where steric protection improves metabolic stability. Also employed in materials science for designing functional polymers and flame retardants due to its thermal robustness and unique molecular architecture.