Novel C2-Symmetric 1,1′-Disubstituted Ferrocenyl Aziridino Alcohol Ligands: Remarkable Improvement of Enantioselectivity in the Catalytic Asymmetric Addition of Diethylzinc to Aldehydes - Wang, Min-Can; Hou, Xue-Hui; Xu, Cui-Lian; Liu, Lan-Tao; Li, Gui-Lan; Wang, De-Kun (Synthesis, 2005)