The solid state photochemistry of 2(1H)-pyrazinones. Structural revision of the photoproduct.

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概要

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• Irradiation of 1-methyl-5,6-diphenyl-2(1<I>H</I>)-pyrazinone (<B>1a</B>) and 1-methyl-5,6,7,8-tetrahydro-2(1<I>H</I>)-quinoxalinone (<B>1b</B>) in the solid state gave the [4+4] <I>syn-trans</I> cyclodimers (<B>4a–b</B>) in almost quantitative yields, while these pyrazinones in solution phase were inert upon irradiation. On the other hand, the 2(1<I>H</I>)-pyrazinones (<B>1c–e</B>) were inert to photolysis in both the solution and solid states.

• 公益社団法人 日本化学会の論文

著者

• Nishio Takehiko

  Department Of Chemistry University Of Tsukuba

• Omote Yoshimori

  Department of Chemistry, Tokyo Kyoiku University

• Nakajima Naoko

  Department of Chemistry, University of Tsukuba

• Kondo Masaji

  Department of Chemistry, University of Tsukuba

• Omote Yoshimori

  Department of Chemistry, Faculty of Science, Tokyo Kyoiku University

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