G. Cainelli et al., ACYCLIC STEREOCONTROL IN THE ADDITION OF TRIMETHYLSILYL CYANIDE TO N-SUBSTITUTED IMINES OF (2S)-LACTIC ALDEHYDE, Tetrahedron : asymmetry, 6(7), 1995, pp. 1593-1600
The cyanosilylation of a series of N-substituted lactaldehyde imines i
s reported. The trimethylsilylcyanide addition affords optically activ
e alpha-amino nitriles. All the imines show a syn diastereofacial sele
ctivity that is maintained irrespective to the nature of the Lewis aci
d employed and even remains in the noncatalyzed reaction.