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Singlet oxygenation of cycloheptatriene: isolation and characterization of the 1,2-dioxetane
Authors:Waldemar Adam  Hector Rebollo
Affiliation:Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-8700 Würzburg, West-Germany and Department of Chemistry, University of Puerto Rico, Rio Piedras, Puerto Rico 00931, USA
Abstract:Tetraphenylporphyrin-sensitized photooxygenation of cycloheptatriene afforded the 1,2-dioxetane (3a) in 9% yield, thus completing the set of possible cycloaddition products; the 1,2-dioxetane (3a) is the precursor to the benzaldehyde product, but not the (2+6)-cycloadduct (2a).
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