The reaction beetween diethyl (2-oxopropyl)phosphonate (1), dry potassium carbonate, iodine, and various aromatic aldehydes in a liquid/solid two-phases system, gives 1,5-diaryl-1,2-epoxy-4-penten-3-ones 5 in good yields.
在液/固两相体系中,
二乙基(2-氧代丙基)
膦酸酯(1)、干
碳酸钾、
碘和各种芳香醛的反应,可得到1,5-二芳基-1,2-环氧-4-
戊烯-3-酮5,且收率较高。