Regiodivergent Aromatic Electrophilic Substitution Using Nitrosoarenes in Hexafluoroisopropanol: A Gateway for Diarylamines and
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‐Iminoquinones Synthesis
A metal‐free aromatic electrophilic substitution reaction using nitrosoarenes as the electrophile in 1,1,1,3,3,3‐hexafluoroisopropanol (HFIP) is reported. HFIP activates nitrosoarene towards the electrophilic C−H amination followed by a concomitant N−O bond cleavage to deliver diarylamines without requiring any extra reagent or further treatment. The dual electrophilic nature of nitrosoarene permits