Silver‐Promoted Oxidative Benzylic C−H Trifluoromethoxylation

A silver‐promoted oxidative benzylic C−H trifluoromethoxylation has been reported for the first time. With trifluoromethyl arylsulfonate as the trifluoromethoxylation reagent, various arenes, having diverse functional groups, undergo trifluoromethoxylation of their benzylic C−H bonds to form trifluoromethyl ethers under mild reaction conditions. In addition, the trifluoromethoxylation and the fluorination of methyl groups of electron‐rich arenes...