Radical mechanism in the photoinduced oxygen transfer from acridine N-oxides to cyclohexene
โ Scribed by H.J. Xu; S.Q. Lin; S.Y. Shen; L. Li; D.W. Chen; G.Z. Xu
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 447 KB
- Volume
- 48
- Category
- Article
- ISSN
- 1010-6030
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The photoreaction of systems containing N-oxides and amines has been studied by ESR. The lowest triplet state of the heteroaromatic N-oxide combines with triethylamine to form an exciplex. Oxygen transfer and a-cleavage of the N-C bond in the amine part of the exciplex gave diethyl nitroxide.
## Photolysis of benzofurazan N-oxide in chloroform generates the nitroxyl radical l( 3H)-benzofurazanyloxyl via hydrogen abstraction from the solvent molecules by the photoexcited lowest triplet state benzofurazan N-oxide. The photoreaction of benzofurazan N-oxide in triethylamine provides the di