Aj. Maroulis et Ea. Kalambokis, DYE-SENSITIZED PHOTOOXYGENATION OF BENZOPHENONE AROYLHYDRAZONES, Journal of chemical research. Synopses, (7), 1993, pp. 278-279
Dye-sensitized photooxygenation of benzophenone aroylhydrazones causes
oxidative cleavage to benzophenone and substituted benzoic acids; a p
roposed mechanism involves singlet oxygen.