The photoreaction of pyrazine derivatives.
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概要
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The irradiation of the pyrazine derivative with an α-carbonyl substituent (<B>1</B>) under a nitrogen atmosphere gave hydroxypyrazine (<B>2</B>) and two solvent adducts (<B>3</B> and <B>4</B>). In the case of <B>1e</B>, the charge-transfer complex of pyrazine and dihydropyrazine, produced by the reduction of the pyrazine, was isolated. The mechanism of this photoreaction was similar to that of flavine. The attack of oxygen on dihydropyrazine produced <B>2</B>. Furthermore, the photoreduction with DTT occurred through the intermediate, which was similar to the case of flavine. The reaction rates of various pyrazines were measured. The quenching studies indicate that the photoreaction proceeds <I>via</I> the n-π<SUP>*</SUP> triplet state.
- 公益社団法人 日本化学会の論文
著者
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Iida Hirotada
Department of Industrial Chemistry and Synthetic Chemistry, Faculty of Engineering, Chiba University
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Kasimura Hideaki
Department of Synthetic Chemistry, Faculty of Engineering, Chiba University
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Yamada Kazutoshi
Department of Chemistry, Tokyo Kyoiku University
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Katsuura Kiyoshi
Department of Synthetic Chemistry, Faculty of Engineering, Chiba University
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