All articles of this category A one-pot procedure for the preparation of highly functionalized 3-methylenetetrahydrofurans is described. The methodology is based on an oxygen nucleophile initiated Michael addition of propargyl alcohols to alkylidene or arylidenemalonates followed in situ by a palladium-mediated exo-dig cyclization. oxygen initiated Michael addition - palladium mediated exo-dig carbocyclization - 3-methylenetetrahydrofuran synthesis
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Marat et al. (1997) studied this question.