Copper‐ or Iron‐Catalyzed Arylation of Phenols from respectively Aryl Chlorides and Aryl Iodides

The first general entry into copper-catalyzed arylation of phenols from aryl chlorides is the principal outcome of the study presented in this article. The use of the 2,2,6,6-tetramethyl-3,5-heptanedione (1) as ligand is the key to the success of this reaction. An additional finding of this study, touched upon only briefly here, is the 1/Fe-catalyzed arylation of phenols from aryl iodides (R=a donating or an electron-withdrawing group).