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Article Dans Une Revue Chemistry - A European Journal Année : 2020

Direct Trifluoromethylation of Alcohols Using a Hypervalent Iodosulfoximine Reagent

Résumé

The direct trifluoromethylation of a variety of aliphatic alcohols using a hypervalent iodosulfoximine reagent afforded the corresponding ethers in moderate to good yields (14–72 %). Primary, secondary, and even tertiary alcohols, including examples derived from natural products, underwent this transformation in the presence of catalytic amounts of zinc bis(triflimide). Typical reaction conditions involved a neat mixture of 6.0 equivalents of the alcohol with 1.0 equivalent of the reagent, with the majority of reactions complete within 2 h with 2.5 mol % of the Lewis acid catalyst. Furthermore, experimental evidence was provided that the C−O bond-forming process occurred via the coordination of the alcohol to the iodine atom and subsequent reductive elimination.
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hal-03121267 , version 1 (27-01-2021)

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Jorna Kalim, Thibaut Duhail, Ewa Pietrasiak, Elsa Anselmi, Emmanuel Magnier, et al.. Direct Trifluoromethylation of Alcohols Using a Hypervalent Iodosulfoximine Reagent. Chemistry - A European Journal, 2020, ⟨10.1002/chem.202005104⟩. ⟨hal-03121267⟩
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