SEARCH Articles Figures Tables Cyclic hydrogen Cyclic hydrogenation Cyclic imine Cyclic imines Enantioselection imines Enantioselective imine hydrogenation Enantioselectivity cyclic imine Enantioselectivity hydrogenation Enantioselectivity imine Enantioselectivity imines Hydrogen enantioselective Hydrogen enantioselectivity Hydrogenation cyclic imine Hydrogenation enantioselective Imines cyclic, hydrogenation Imines hydrogenation