摘要:
A systematic study of the diastereoselective addition of methyl organometallic compounds to the benzyl imine derived from conveniently protected D-glyceraldehyde in order to develop a new approach to enantiomerically pure alpha-hydroxy-beta-amino acids is reported. Methylmagnesium bromide addition afforded the corresponding adduct, which can be further elaborated to give (2S, 3R) 3-amino-2-hydroxybutanoic acid, with complete diastereoselectivity.