Phenols are not only important structural motifs occurring in numerous pharmaceuticals, polymers, and natural products, but also serve as versatile synthetic intermediates in preparing oxygenated heterocycles 1 and aryl ethers. 2 The classical non-oxidative preparation of this class of compounds include transformation of arene diazonium salts in the presence of a copper complex, nucleophilic substitution of activated aryl halides and the benzyne synthetic ...
