Chiral beta-N,N-dibenzylamino nitriles Bn(2)NCH(R)CH2CN, prepared in e
nantiomerically pure form from alpha-amino acids, can be deprotonated
and stereoselectively alkylated to afford beta-amino nitriles Bn(2)NCH
(R)CH(R')CN with two stereogenic centers. LiAlH4-reduction leads to th
e corresponding 1,3-diamines.