Copper-Catalyzed Innate Ethoxycarbonyldifluoromethylation of Electron-Rich Arenes - Archive ouverte HAL
Article Dans Une Revue European Journal of Organic Chemistry Année : 2015

Copper-Catalyzed Innate Ethoxycarbonyldifluoromethylation of Electron-Rich Arenes

Résumé

We report the direct introduction of the CF2CO2Et moiety into electron-rich arenes. The copper-catalyzed process uses commercially available and inexpensive BrCF2CO2Et as a fluorinated building block. This radical-free reaction proceeds smoothly to give the desired difluoromethylated arenes in modest to good yields with a Friedel–Crafts-type regioselectivity. The direct introduction of α,α-difluoromethylated amides was also investigated, and this gave the corresponding difluoromethylated arenes, albeit in moderate yields. This method represents the first transition-metal-catalyzed direct introduction of a functionalized fluorinated moiety into electron-rich arenes.

Dates et versions

hal-01149136 , version 1 (06-05-2015)

Identifiants

Citer

Marie-Charlotte Belhomme, Alexandre Bayle, Thomas Poisson, Xavier Pannecoucke. Copper-Catalyzed Innate Ethoxycarbonyldifluoromethylation of Electron-Rich Arenes. European Journal of Organic Chemistry, 2015, 2015 (8), pp.1719-1726. ⟨10.1002/ejoc.201403656⟩. ⟨hal-01149136⟩
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