Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective transformations such as aldol reactions, Michael additions, and epoxidations. Its rigid adamantane framework and well-defined chiral environment enhance stereoselectivity, making it valuable in pharmaceutical and fine chemical synthesis where high enantiomeric purity is required. The hexafluorophosphate counterion contributes to solubility in polar aprotic solvents, facilitating its use in homogeneous catalytic systems.