Dechlorination of polychlorobenzenes over triiron tetraoxide in the presence of hydrogen donating solvents.

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概要

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• Dechlorination of polychlorobenzenes over Fe<SUB>3</SUB>O<SUB>4</SUB> was investigated by a pulse micro-reactor technique. Dechlorinations of various polychlorobenzenes in hexane and cyclohexane were carried out in the gas phase at the temperatures ranging from 498 to 623 K. In the presence of such hydrogen donating solvents, dechlorination was shown to proceed almost exclusively. The relative rates of dechlorination were measured by gas chromatography. It was found that the solvents used to dissolve polychlorobenzenes plays a role of a hydrogen donor in this reaction. The different rates among unequivalent chlorine atoms in a molecule were interpreted by the effect of steric acceleration caused by the neighboring chlorine atom(s). The reaction will probably proceed <I>via</I> hydrogenolytic cleavage of C–Cl bonds.

• 公益社団法人 日本化学会の論文

著者

• YAMAGUCHI Tatsuaki

  Chemistry of Organic Resources Laboratory, Department of Industrial Chemistry, Faculty of Technology

• Nakada Masahiro

  Chemical Laboratory, Chiba Institute of Technology

• Hao Cui

  Chemical Laboratory, Chiba Institute of Technology

• Hirota Minoru

  Deparment of Synthetic Chemistry, Division of Materials Science and Chemical Engineering, Faculty of Engineering, Yokohama National University

• Fukushi Sachio

  Chemical Laboratory, Chiba Institute of Technology

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