Dye-sensitized photooxygenations of 1, 3-isoquinolinediones
L Ke-Qing, J Gang, C Hu, X Jian-Hua
Index: Ling, Ke-Qing; Ji, Gang; Cai, Hu; Xu, Jian-Hua Tetrahedron Letters, 1998 , vol. 39, # 16 p. 2381 - 2384
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Citation Number: 17
Abstract
Singlet oxygen reactions of 1, 3-isoquinolinediones 1a-1e could be sensitized by the anionic sensitizer Rose Bengal (RB) in methanol or by tetraphenylporphin (TPP) in the presence of pyridine as a base and a cosolvent in benzene. The products are the corresponding 1, 3, 4- isoquinolinetriones 2a-2e and methyl 1-hydroxy-3-oxoisoindole-1-carboxylates 3b-3e in methanol and the triketones 2a-2e and the 3-hydroxy-3-alkyl (aryl) ...
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