Enantioselective addition of diethylzinc to aldehydes with novel chiral C2-symmetric dimeric ligands
作者:Masanori Okaniwa、Reiko Yanada、Toshiro Ibuka
DOI:10.1016/s0040-4039(99)02230-3
日期:2000.2
Novel (S)-valinol-based chiral C2-2,2′-ethylenediiminodiethanol derivatives 4a and 4b have been synthesized and used as chiral catalysts in the enantioselectiveaddition of diethylzinc to aldehydes. (R)-1-Phenylpropanol has been obtained in up to 91% enantiomeric excess.