Chiral Iridium Catalysts Bearing Spiro Pyridine‐Aminophosphine Ligands Enable Highly Efficient Asymmetric Hydrogenation of β<i>‐</i>Aryl β‐KetoestersJian‐Hua Xie, Qi‐Lin Zhou, Xiao‐Hui Yang et al.|Angewandte Chemie International Edition|2011Cited by 139