hydroxylamines was observed in iridium-catalyzedreaction. Regio- and enantioselectiveallylic substitution of the unsymmetrical phosphates with hydroxylamines was studied by using the iridium complex of chiral pybox ligand. The aqueous-medium reaction with hydroxylamines proceeded smoothly in the presence of Ba(OH)2·H2O to give the branched products with good enantioselectivities.