I. Baussanne et al., DIASTEREOSELECTIVE BIS-ALKYLATION OF CHIRAL NON-RACEMIC ALPHA,BETA-UNSATURATED GAMMA-LACTAMS, Tetrahedron letters, 35(23), 1994, pp. 3931-3934
A new chiral non-racemic gamma-lactam 1 easily prepared in one step fr
om (R)-(-)-phenylglycinol was bis-alkylated alpha to the carbonyl func
tion in very high to complete diastereoselectivity. The stereochemistr
y at the so-formed chiral quaternary center was ascertained through an
X-ray crystallographic study.