application： (3aS,3′aS,8aR,8′aR)-2,2′-Methylenebis[3a,8a-dihydro-8H-indeno[1,2-d]oxazole] can be used as a chiral ligand:In the preparation of oxazole α-hydroxy esters through intermolecular Alder-Ene reaction；In the atom transfer radical polymerization reactions of methyl methacrylate；In the copper-catalyzed synthesis of isoxazolidine derivatives by reacting nitrone with α,β-unsaturated acyl phosphonate.