THE ASYMMETRIC MICHAEL REACTION USING CHIRAL IMINES UNDER NEUTRAL CONDITIONS - STEREOCHEMICAL EVIDENCES IN SUPPORT OF A CYCLIC TRANSITION-STATE

Stereochemical outcome observed in addition [6 + 7], [ent-6 + 15] and [18 + methyl acrylate] have been rationalized by evoking the participa tion of the corresponding compact approaches 14, 21 and 22.