“…Anderson and Reese have discovered the photoreaction where a homolytic fragmentation of a carbon–heteroatom bond is involved, i.e., C–O, C–S, and C–N, of esters, thioesters and amides, respectively . The photo-Fries rearrangement proceeds via a well-established radical mechanism, mainly occurring through the excited singlet state. , Typically, the photoinduced Fries rearrangement reaction of (hetero)aryl benzoates in homogeneous media affords ortho- and para- regioisomers as well as the corresponding phenols (Scheme ). , …”