One-flask Preparations of 3,3-Dialkoxybicyclo[2.2.2]oct-5-en-2-one Derivatives from Methyl Vanillate, Methyl Isovanillate, and 2-Methoxy-4-methylphenol

Abstract
3,3-Dialkoxybicyclo [2.2.2]oct-5-en-2-one derivatives were prepared from methyl vanillate, methyl isovanillate and 2-methoxy-4-methylphenol in one-flask and two-step reactions: oxidation with iodobenzene diacetate and inter- and intramolecular Diels-Alder reactions of thus-obtained masked o-benzoquinones.

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