Photosubstitution in aromatic compounds with the participation of nucleophiles.
Note:
While electrophilic substitution is the most common reaction on aromatic compounds in the @G02704@, nucleophilic substitution is typical for the excited states of these compounds. Some electrophilic aromatic photosubstitutions (upon excitation of the aromatic substrate) have been reported.
Source:
PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 376 (https://doi.org/10.1351/pac200779030293)