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À propos de : Studies on the Reactivity of Phenyliodonium Ylide of2-Hydroxy-1,4-Naphthoquinone: Reactions with IndoleDerivatives and Other C-Nucleophiles        

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  • Studies on the Reactivity of Phenyliodonium Ylide of2-Hydroxy-1,4-Naphthoquinone: Reactions with IndoleDerivatives and Other C-Nucleophiles
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  • Thermal decomposition of phenyliodonium ylide of 2-hydroxy-1,4-naphthoquinone (lawsone) in thepresence of indole derivatives affords 3-acylated indoles existing in their enol forms, through aring contraction and α,α‘-dioxoketene formation reaction. The same reactants afford 3-(3-indolyl)-2-hydroxy-1,4-naphthoquinones in a copper-catalyzed reaction. Enamines, among other C-nucleophiles tested, give analogous results.
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