HCl-Catalyzed Photoreduction of 4-Bromonitrobenzene as a Concomitant of Nucleophilic Aromatic Photosubstitution Involving Radical Intermediates

Article abstract of DOI:10.1021/ja00216a029

Irradiation of 4-bromonitrobenzene at 313 nm in aqueous solutions containing hydronium ion and relatively high concentrations of chloride ion cleanly but inefficiently forms 4-chloronitrobenzene. 2-Bromonitrobenzene is unreactive in photosubstitution by c