There is high demand for new methods for the synthesis of substituted 2-phenoxybenzoic acids owing to their importance as bactericides.1 Furthermore, they are important intermediates in the synthesis of bioactive xanthones.2 The diaryl ether motif is abundant in a number of natural products, including important medicinal compounds such as vancomycin3 and chloropeptins.4 Ullmann and Wagner described more than a century ago the reactivity of ...