Abstract
The reaction of perfluorobenzocyclobutene with excess pentafluorobenzene in SbF5, followed by hydrolysis, gave a mixture of perfluoro-1,3,3-triphenyl-1,3-dihydro-2-benzofuran-1-ol, perfluoro-1,1,2-triphenylbenzocyclobuten- 5-one, and perfluoro-4-(2,2-diphenylbenzocyclobuten-1-ylidene)cyclohexa-2,5-dien-1- one. When the reaction mixture was treated for a long time with Olah’s reagent (HF–pyridine), isomeric perfluoro-9,10-diphenyl-1,4-, -1,10-, -2,9-, and -9,10-dihydroanthracenes were formed and were converted to perfluoro-9,10-diphenylanthracene by the action of SbF5.
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Original Russian Text © T.V. Mezhenkova, V.R. Sinyakov, V.M. Karpov, Ya.V. Zonov, Yu.V. Gatilov, V.E. Platonov, 2018, published in Zhurnal Organicheskoi Khimii, 2018, Vol. 54, No. 4, pp. 546–553.
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Mezhenkova, T.V., Sinyakov, V.R., Karpov, V.M. et al. Reaction of Perfluorobenzocyclobutene with Excess Pentafluorobenzene in SbF5. Russ J Org Chem 54, 545–553 (2018). https://doi.org/10.1134/S107042801804005X
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DOI: https://doi.org/10.1134/S107042801804005X