Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective hydrogenation and C–C bond formation reactions. Its sterically bulky tert-butylphenyl groups and rigid oxazoline rings enhance stereocontrol, making it effective in producing high enantiomeric excess in transition metal-catalyzed reactions. Commonly employed with rhodium or iridium complexes for synthesizing chiral intermediates in pharmaceuticals and fine chemicals.