Sakineh Asghari, R. Baharfar, Safiyeh Safiri
Dec 1, 2005
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Influential Citations
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Phosphorus, Sulfur, and Silicon and the Related Elements
Abstract
2-acetylbutyrolactone undergoes a smooth reaction with triphenylphosphine and dialkyl acetylenedicarboxylates to produce dialkyl 2-(3-acetyl-2-oxotetrahydro-3-furanyl)-3-(1,1,1-triphenyl-1 5 -phosphanilidene) succinate. These compounds undergo an intramolecular Wittig reaction to produce highly strained spiro compounds in boiling benzene, which spontaneously undergo ring-opening reactions to produce dialkyl (E)-2-{1-[2-oxodihydro-3(2H)-furaniliden]ethyl}-2-butenedioates.