Journal of the Chinese Chemical Society p. 313 - 318 (1998)
Update date:2022-08-16
Topics:
Lin, Yuh-Nong
Jeng, Guang-Yan
Chan, Tung-Tan
Yen, Giann-Feng
Wong, Yih-Gang
Upon irradiation in 2-propanol, p-nitroacetophenone 1 was reduced via the triplet state to p-hydroxyammoacetophenone 5 which was further reduced top-aminoacetophenone 2 and 4,4′-diacetylazobenzene 4. Similar irradiation of 5 also gave 2 and 4, and its oxidation by oxygen gave 4,4′-diacetylazoxybenzene 3. Photolysis of monomeric p-nitrosoacetophenone 6 afforded acetophenone and 3 that were not produced during the irradiation of 1 Possible photoreaction pathways were discussed on the basis of published mechanisms.
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