Enantioselective hydrogenation of olefins with axial chiral iridium QUINAP complex

(S)-QUINAP reacted with [Ir(cod)Cl]2 to form a new chelating iridium complex in 77.4% yield. The iridium complex was proved to be a highly efficient catalyst for the enantioselective hydrogenation of olefins. 33.4–95.1% ee were obtained for the hydrogenation of unfunctionalized olefins and 90.8–96.1% ee were obtained for functionalized olefins.