Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective organic transformations such as cyclopropanation, Diels-Alder, and conjugate addition reactions. Its rigid carbazole backbone and oxazoline moieties provide excellent stereocontrol, making it valuable in the synthesis of optically active compounds for pharmaceuticals and fine chemicals. Often coordinated with transition metals like copper or rhodium to form highly efficient catalytic systems.