摘要:
Both enantiomers of the planar chiral (2-bromo-3,5-dialkoxybenzaldehyde)chromium complexes were prepared by diastereoselective ortho-lithiation of tricarbonylchromium complexes of the chiral benzaldehyde acetals with high optical purity. (C) 1999 Elsevier Science S.A. All rights reserved.