Intramolecular Michael Addition of Cyclic β‐Ketoester on Conjugated Olefinic Ketone, a Stereoelectronically Controlled Process.

Abstract A study on the base-catalyzed intramolecular Michael addition of cyclic β-ketoester enones 9 and 10 (n = 0-3, R 1 = R 2 = H and/or CH 3 ) is reported.