Photoreactions of polyhalobenzenes in benzene. Formation of terphenyls.
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概要
- 論文の詳細を見る
Polychlorobenzenes, polybromobenzenes, and polychloropolybromobenzenes (C<SUB>6</SUB>H<SUB>6−<I>n</I></SUB>X<I><SUB>n</SUB></I>) were photolyzed in benzene solutions; the products were analyzed by the GC/MS method. Both dehalogenation and phenylation were shown to take place competitively, producing (poly)halobenzenes bearing one less halogen atom (C<SUB>6</SUB>H<SUB>7−<I>n</I></SUB>X<SUB><I>n</I>−1</SUB>) and (poly)halobiphenyls (C<SUB>6</SUB>H<SUB>6−<I>n</I></SUB>X<SUB><I>n</I>−1</SUB>–C<SUB>6</SUB>H<SUB>5</SUB>) as the major products. Besides these products, terphenyl was produced by a consecutive phenylation of the halobiphenyl formed. Polychlorobenzenes were shown to form the corresponding terphenyls only when a pathway via 2-chlorobiphenyl is possible; however, polybromobenzenes can produce terphenyls through any of the isomeric bromobiphenyls intermediarily formed. Isomerization through <I>m</I>-migration of a chlorine atom was also shown to occur to a considerably lesser extent.
- 公益社団法人 日本化学会の論文
著者
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Hirota Minoru
Department Of Animal Science Obihiro University Of Agriculture And Veterinary Medicine
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Mori Toru
Department Of Environment Conservation Faculty Of Agriculture Ehime University
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Miura Chihiro
Chemical Laboratory, Chiba Institute of Technology
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Nakada Masahiro
Chemical Laboratory, Chiba Institute of Technology
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Nishiyama Hideaki
Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University
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Higashi Futoshi
Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University
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Ishii Tetsuo
Yokohama Research Institute for Environmental Protection
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Nishiyama Hideaki
Department of Applied Chemistry, Faculty of Engineering, Yokohama National University
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Hirota Minoru
Deparment of Synthetic Chemistry, Division of Materials Science and Chemical Engineering, Faculty of Engineering, Yokohama National University
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