SCHEDULED MAINTENANCE
Double deprotonation of β-ketoester (6) gives dianion (7) which serves as a synthetic equivalent of the regiospecific ketone enolate (3), providing a synthetic entry to 2-substituted pyrrolidin-3-ones (9) and (10).
M. Giles, M. S. Hadley and T. Gallagher, J. Chem. Soc., Chem. Commun., 1990, 1047 DOI: 10.1039/C39900001047
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