摘要:
                                The nucleophilic 1,2-addition of organocerium compounds to alpha-SAMP/RAMPhydrazone acetals 1 is the basis of a new, highly enantioselective route to synthetically versatile alpha-amino acetals 2 and alpha-amino acids 3. R = Me, Et, nPr, iPr, nBu, tBu, Ph.                   [GRAPHICS]