UNEXPECTED HIGH PHOTOIXIDIZING EFFICIENCY OF BENZOPHENONE DERIVATIVES HAVING TETRAALKYLAMMONIUM SUBSTITUENTS

Article abstract of DOI:10.1246/cl.1980.251

Benzophenone derivatives having various tetraalkylammonium ion in the 4 position (II, III, IV, and V) were found to be much more efficient senzitizers than benzophenone(I) in photooxidation of Leuco Crystal Violet(LCV) to Crystal Violet(CV⁺) in acetonitrile in air, which was interpreted in terms of the cationic atmosphere effect facilitating the primary electron transfer process from LCV to BP^*3.