N-METALLO-IMINES: A NEW APPROACH TO α-AMINO ALCOHOLS FROM CYANOHYDRINS
The addition of lithium alkyls to the in-situ generated O-protected α-hydroxy-N-diisobutylaluminium-imines, proceeds in a stereocontrolled manner, as indicated by the predominant formation of the syn adduct (4) from cyanohydrins (1) in satisfactory yields