Reductive Homocondensation of Benzylidene- and Alkylidenepyruvate Esters by a P(NMe2)3‑Mediated Tandem Reaction
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A reductive homocondensation of E-benzylidenepyruvate esters mediated by P(NMe2)3 is described. The transformation, initiated by the Kukhtin–Ramirez addition of the phosphorus reagent to the vinyl-substituted α-dicarbonyl substrate, proceeds via a resonance delocalized oxyphosphonium dienolate intermediate to provide access to diverse oxygenated heterocycles as a function of the substituent.
创建时间：
2016-02-19
