Methylene blue sensitized photooxidation of m-hydroxydiphenylamine gives N-(3- hydroxyphenyl)-p-benzoquinoneimine as the primary product in acetonitrile-water medium. The experimental results are in good agreement with the theoretical plots calculated on the basis of the reaction undergoing through the participation of as well as the excited dye interacting with the substrate. β-Value and rate constant of reactivity of m- ...
