Article
Journal of Organic Chemistry  (2007)

Intrinsic Gas-Phase Reactivity of Ionized 6-(Oxomethylene)cyclohexa-2,4-dienone: Evidence Pointing to Its Neutral r-Oxoketene Counterpart as a Proper Precursor of Various Benzopyran-4-ones and Analogues

de Carvalho, P. S.; Nachtigall, F. M.; Eberlin, M. N.; Moraes, L. A. B.