89. Jian-Hua Xie,* Xiao-Yan Liu, Xiao-Hui Yang, Jian-Bo Xie, Li-Xin Wang, and Qi-Lin Zhou*, Chiral Iridium Catalysts Bearing Spiro Pyridine-Aminophosphine Ligands Enable Highly Efficient Asymmetric Hydrogenation of b-Aryl b-Ketoesters, Angew. Chem. Int. Ed. 2012, 51, 201 –203
