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论文排版
Efficient synthesis of functionalized butenolides mediated by vinyltriphenylphosphonium salts in aqueous media
【摘要】：
<正>An efficient synthesis of 5-oxo-2,5-dihydro-3-furancarboxylate derivatives via reaction of dialkyl acetylenedicarboxylate with triphenylphosphine(Ph_3P) in the presence of activated carbonyl compounds such as ethyl pyruvate,benzil,benzoylcyanide, biacetyle or N-alkylisatins is described.
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