Used as a chiral auxiliary in asymmetric synthesis, particularly in the preparation of enantiomerically pure compounds. Its rigid structure and stereochemical stability make it effective in controlling the stereochemistry of reactions such as alkylations, aldol additions, and Diels-Alder cyclizations. Commonly employed in pharmaceutical research to build complex molecules with high enantioselectivity. After serving its role, it can be cleaved under mild conditions without racemization, allowing recovery of the desired chiral product.