2,4-di-tert-Butyl-6-{n-[(1R)-2-[(E)-[(3,5-di-tert-butyl-2-hydroxyphenyl)methylidene]amino]cyclohexyl]carboximidoyl}phenol

)-n,n'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine ; (r,r)-(− ; (r r)-(-)-n n''-bis(3 5-di-t-bu-salicyl.) -1 2-cyclohexanedia 96+% ; (r,r)-(-)-n,n'-bis(3.5-di-t-butylsalicylidene)-1,2-cyclohexanediamine ; n'-bis(3,5-di-tert-butylsalicylidene)-1 ; (r,r)-(-)-n,n'-bis(3,5-di-t-bu-salicyl.)-1 ,2-cyclohexandiam. ; (r,r)-jacobsen ligand ; (r,r)-(-)-n,n'-bis(3,5-di-t-bu-salicyl.)-1,2-cyclohexanedia ; n,n'-bis(3,5-dibutylsalicylidene)-1,2-cyclohexanediamine ; (r,r)-jacobsen's ligand