Used as a chiral catalyst in asymmetric synthesis, particularly in enantioselective oxidation and C–H activation reactions. Its oxazoline-quinoline framework stabilizes metal complexes, enhancing stereocontrol in the formation of chiral intermediates for pharmaceuticals and fine chemicals. Commonly employed with palladium or copper to promote high enantioselectivity in coupling reactions. Valued for its robustness and recyclability in catalytic cycles.