Evaluation of N,P-iridium catalysts in the asymmetric hydrogenation of 1a^a.

^aReaction conditions: 0.05 mmol of 1a, 1 mol% catalyst, 0.5 mL CH₂Cl₂, 10 bar H₂. Conversion was determined by ¹H-NMR spectroscopy. Enantiomeric excess was determined by SFC.