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Efficient oxygen-atom transfer agent: photochemical hydroxylation of benzene derivatives by pyrimido[5,4-g]pteridine n-oxide
Authors:Magoichi Sako  Kaoru Shimada  Kosaku Hirota  Yoshifumi Maki
Affiliation:Gifu Pharmaceutical University, 6-1, Mitahora-higashi 5 Chome, Gifu 502, Japan
Abstract:Pyrimido[5,4-g]pteridine N-oxide (1) oxidizes efficiently benzene, toluene, and anisole under UV irradiation to give the corresponding phenol derivatives 4, though the easiness of the reaction significantly depends upon the nature of the substituents on the benzene ring.
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