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- W149521751 abstract "La structure du bis-peroxyde 5, formé par photoxydation du benzhydrylidéne-cyclobutane 1, est démontrée par un certain nombre de transformations, notamment acidolyse sélective (en hydroperoxydes 11), réductions variées du bis-peroxyde 5 (en diols 6, 8 et tétrol 9) et de ses dérivés (en diols 7, 21 et dérivés, époxyde 12, alcool 13, triol 14, tétrols 15, 22), et dégradations oxydatives partielles (en bis-hémiacétal 17, hémiacétal-lactone 18, cétol 19, lactones 27, 28, 29). Les configurations et les conformations de tous les dérivés sont déterminées par étude de leurs spectres de RMN, particulièrement en utilisant un complexe d'europium. The bis-peroxide 5 was obtained by sensitized photo-oxidation of benzhydrylidene-cyclobutane 1. The structure was established on the basis of a series of reactions, including selective acidolysis (to the hydroperoxides 11) and reductions of the bis-peroxide 5 (to the diols 6, 8 and tetrol 9) and some of its derivatives (to the diols 7, 21 and derivatives, epoxide 12, alcohol 13, triol 14, tetrols 15, 22), and partial oxidative degradations (to the bis-hemiacetal 17, hemiacetal-lactone 18, ketol 19, and lactones 27, 28, 29). The configurations and conformations of all the derivatives were established by NMR spectroscopy including the use of a europium shift reagent." @default.
- W149521751 created "2016-06-24" @default.
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- W149521751 date "1973-01-01" @default.
- W149521751 modified "2023-10-01" @default.
- W149521751 title "Photoxydation sensibilisée du benzhydrylidéne-cyclobutane" @default.
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- W149521751 doi "https://doi.org/10.1016/s0040-4020(01)93517-3" @default.
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