(1S,2R,3R,4R)-α,α,α′,α′-Tetraphenylbicyclo [2.2.1]heptane-2,3-dimethanol and Its Enantiomer as Ligands in Titanate-Complex-Catalyzed Diethylzinc Addition to Aldehydes - Dreisbach, Claus; Kragl, Udo; Wandrey, Christian (Synthesis, 1994)