Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A stereoselective synthesis of N-Boc-α-amino alcohols and α-amino acids the addition of Grignard reagents to the chiral electrophilic glycine equivalent α-bromo-N-Boc- glycine(−)phenylmenthylester is described. ... Only in the case of the glycine derivative transesterification could be ...