Highly Efficient Synthesis of Methyl-Substituted Conjugate Cyclohexenones.-The base-catalyzed annulation reaction of β-keto esters with conjugate enones or enals provides an efficient and mild method for the preparation of various alkyl substituted cyclohexenones, useful building blocks for the synthesis of natural products. -(CHONG, B.-D.; JI, Y.-I.; OH, S.-S.; YANG, J.-D.; BAIK, W.; KOO, S.; J.
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