Introduction of the Acyl Group at the <scp>C7</scp> Position of Indole via <i>N</i> ‐Acyl Indole Photo‐Fries Rearrangement Under <scp>UV</scp> ‐C

ABSTRACT This study focused on the selective introduction of an acyl group at the C7 position of indole via amide photo‐Fries rearrangement. Utilizing UV‐C as the sole light source, the N ‐acyl group of indoles was successfully rearranged across the bridging carbon to the α‐position. This approach enabled a mild reaction and environmentally friendly conditions. The acyl substituent must be small or aliphatic to undergo successful rearrangement, unlike acyl radicals with larger or aromatic substituents.