On the Existence and Relevance of Copper(III) Fluorides in Oxidative Trifluoromethylation
Noel Nebra,
Daniel Joven-Sancho
Abstract:Numerous reports invoke CuIII-F intermediates engaging in oxidative cross-couplings mediated by low/mid valent copper and formal sources of “F+” oxidants. These elusive and typically instable CuIII fluorides have been rarely characterized or spectroscopically identified, making their existence and participation within catalytic cycles somehow questionable. We have authenticated a stable organocopper(III) fluoride that undergoes Csp−CF3 bond formation upon addition of silyl-capped alkynes following a 2e― CuIII/… Show more
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