SCHEDULED MAINTENANCE
Triphenylbismuthonium 2-oxoalkylide 2, generated in situ from salt 1 in THF at low temperature, readily reacts with 1,2-dicarbonyl compounds 3 to give 2,3-diacyloxiranes 4 or 2-acyl-3-hydroxytropones 5 depending on the structure of the electrophiles involved.
Y. Matano and H. Suzuki, Chem. Commun., 1996, 2697 DOI: 10.1039/CC9960002697
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