The photochemical dimerization of 2-acyl-1,4-quinones.

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概要

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• 2-Acyl-1,4-benzoquinones and 2-acyl-1,4-naphthoquinones underwent a novel type of regiospecific and stereospecific cyclodimerization by photolysis. The reaction was general, being not affected by any variation in the substituents and solvents. The structure of the dimers was elucidated as 4aα-acyl-10β-alkyl-5,8-dihydroxy-4aα,10aα-dihydro-1,4,9(10<I>H</I>)-phenanthrenetriones and dibenzo [<I>b</I>,<I>h</I>] homologues (<B>8</B>). The structure of <B>8</B> suggests that the dimerization proceeds through <I>cis</I>-ring fusion, disposing two substituents of the dimer (an acyl and an alkyl group) to a <I>trans</I> configuration.

• 公益社団法人 日本化学会の論文

著者

• Matsuura Yoshiki

  Institute For Protein Research Osaka University

• Maruyama Kazuhiro

  Department Of Chemistry Faculty Of Science Kyoto University

• Tanaka Nobuo

  Institute For Solid State Physics University Of Tokyo

• Miyagi Yo

  Faculty Of Education Kanazawa University

• Kakudo Masao

  Institute for Protein Research Osaka University

• Ishii Hideo

  Faculty of Education, Kanazawa University

• Mizuno Sachie

  Faculty of Education, Kanazawa University

• Harada Shigeharu

  Institute for Protein Research, Osaka University

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