Diastereoisomerically Selective Enantiomerically Pure Titanium Complexes of Salan Ligands: Synthesis, Structure, and Preliminary Activity Studies
作者:Adi Yeori、Stanislav Groysman、Israel Goldberg、Moshe Kol
DOI:10.1021/ic050745b
日期:2005.6.1
The degree of diastereoselectivity in the wrapping of four newchiral Salan ligands to form chiral-at-metal titanium complexes ranged from mild to perfect as a function of the ligands' N substituents; the enantiomericallypure complexes catalyzed the addition of diethyl zinc to benzaldehyde in 73-76% enantiomeric excess.