Condensation of αβ-unsaturated ketone enolates with benzyne leads to the new type of cyclobutanols (3); ring opening of (3) under basic conditions affords the aromatic ketones (4) in good yields (75–85%).
M. Essiz, G. Guillaumet, J. Brunet and P. Caubère, J. Chem. Soc., Chem. Commun., 1979, 276 DOI: 10.1039/C39790000276
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