Mc. Darrigo et al., STEREOCHEMICAL BEHAVIOR OF (3R)-3-METHYLPIPERAZINE-2,5-DIONE AND (3S)-3-METHYLPIPERAZINE-2,5-DIONE DERIVATIVES DURING ACYLATION AND ALDOL CONDENSATION, Journal of chemical research. Synopses, (5), 1995, pp. 162-163
The stereochemical behaviour of (3R)- and (3S)-3-methylpiperazine-2,5-
dione derivatives during acylation and aldol condensation was studied
and the configurations of the newly introduced stereogenic centres wer
e assigned on the basis of H-1 NMR spectroscopic data.