Abstract
Photooxidation of aniline and its methyl and chloro derivatives with dioxygen sensitized by substituted zinc (PcZn) and palladium (PcPd) phthalocyanines in solution and on the carrier surface upon visible light irradiation affords selectively the corresponding p-aminophenols. Active and the most stable PcPd derivative adsorbed on Amberlite XAD 7HP provides conversion of 2,6-dimethylaniline with selectivity over 90% without the loss of sensitizer activity at least in 8 repeated cycles, the overall turnover number of the sensitizer being greater than 25,000.
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