Photochemical Cleavage Reactions of 8-Quinolinyl Sulfonates in Aqueous Solution
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概要
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Photochemical cleavage reactions of 8-quinolinyl benzenesulfonate derivatives and related sulfonates in aqueous solutions are reported. The 8-quinolinyl benzenesulfonates undergo photolysis upon photoirradiation at 300—330 nm to give the corresponding 8-quinolinols and benzenesulfonic acids with the production of only negligible amounts of byproducts. The effects of substituent groups of the 8-quinolinyl moiety and the benzene ring on the photolysis reactions were examined. Based on steady-state mechanistic studies using a triplet sensitizer, a triplet quencher, and electron donors, it was suggested that the photolysis proceeds mainly via the homolytic cleavage of S–O bonds in the excited triplet state.
著者
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Tanimoto Yoshifumi
Graduate School Of Science Hiroshima University
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YAMADA YASUYUKI
Faculty of Agriculture, Kyoto University
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Kageyama Yoshiyuki
Faculty Of Pharmaceitucal Sciences Tokyo University Of Science
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Fujiwara Yoshihisa
Graduate School Of Science Hiroshima University
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Ohshima Ryosuke
Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Sakurama Kazusa
CMC Research Center, Mitsubishi Tanabe Pharma Corporation
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Aoki Shin
Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Yamada Yasuyuki
Faculty Of Agriculture Kyoto University
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Tanimoto Yoshifumi
Graduate School Of Sci. Hiroshima Univ.
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Yamada Yasuyuki
Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Kageyama Yoshiyuki
Faculty of Pharmaceutical Sciences, Tokyo University of Science
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