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- W1992949990 abstract "L'arrachement intramoléculaire d'un Hydrogène situé en γ du carbonyle est un processus général de la photolyse des alcoxy-2 cyclohexène-2 ones. Des cétooxétannes et des α-alkylidèneoxétannols sont obtenus avec de bons rendements par cyclisation du biradical intermédiaire. La régiosélectivité de cette réaction, et quelques aspects de la photolyse des cétooxétannes sont discutés. Contrairement aux alcoxy-2 cyclohexène-2 ones. les diénones croisées correspondantes se réarrangent quantitativement en cyclopropylcétones. α-Ketooxetanes and α-alkylidene oxetanols are the main products of the photolysis of 2-alkoxy 2-cyclohexenones; γ-hydrogen abstraction and cyclization of the intermediate biradical are general processes for these enones. Regioselectivity of the reaction and several aspects of the photolysis of a ketooxetanes are discussed. The corresponding 2-alkoxy cross-conjugated dienones rearrange in cyclopropyl ketones when photolyzed in the same conditions." @default.
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- W1992949990 title "Reactions de cyclisation photochimique D'α-alcoxy cyclohexenones" @default.
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- W1992949990 doi "https://doi.org/10.1016/0040-4020(78)80174-4" @default.
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