The Catalytic Role of Iodide Ion/Iodine Couple in the Photo-Reduction of 10-Methylacridinium Ion with Diphenylphosphine Oxide

Article abstract of DOI:10.1246/cl.1993.1393

Photo-redox between diphenylphosphine oxide and 10-methylacridinium iodide with visible light in aqueous acetonitrile under argon atmosphere is initiated by single electron transfer from the phosphorus compound to the acridinium salt in the potoexcited state giving diphenylphosphinic acid and 10-methylacridan as the final products.Iodide ion/iodine couple plays a crucial role for transferring an electron in this reaction.