A new photoreaction, the photoketonization of dibenzosuberenol (1) to dibenzosuberone (2) in aqueous solution, is reported, the mechanism of which is believed to involve initial ionization of the C–H proton at the 5-position (in S1), to generate a 5-hydroxy-5-dibenzosuberenyl (9) carbanion intermediate.
P. Wan, D. Budac and E. Krogh, J. Chem. Soc., Chem. Commun., 1990, 255 DOI: 10.1039/C39900000255
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