Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective organic transformations. Its rigid cyclopropane core and oxazoline rings provide a well-defined chiral environment, making it effective in metal-catalyzed reactions such as cyclopropanations, aldol additions, and Diels-Alder reactions. The tert-butyl groups enhance steric control and stability, improving enantioselectivity. Commonly employed with copper, nickel, or palladium complexes to achieve high asymmetric induction in the synthesis of pharmaceuticals and fine chemicals.