Alumina-anchored cobalt porphine catalysts for the conversion of quadricyclane to norbornadiene.
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概要
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Methods are described for the preparation of cobalt(II) deuteroporphyrin and cobalt(II) tetrakis(<I>p</I>-sulfonatophenyl)porphine anchored on alumina beads coated with polyaminesulfone-A. Wavelength dispersive X-ray microanalysis showed that the cobalt(II) porphine distributes within the catalyst outer surface layer of ca. 100 μm depth. The catalysts are highly active for the cycloreversion of quadricyclane to norbornadiene. A detailed kinetics of the isomerization using an isothermal recycle reactor gave a rate expression of Langmuir–Hinshelwood type. The catalysts gradually lose their activity, which can be regenerated completely by heating the catalysts at 200 °C in vacuo.
著者
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Miki Sadao
Department Of Chemistry And Material Technology Kyoto Institute Of Technology
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Fukuoka Masahiro
Department Of Cardiology National Sagamihara Hospital
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Maruyama Toshiro
Department Of Chemical Engineering Faculty Of Engineering Kyoto University
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Takada Tomoaki
Department Of Dermatology Sapporo Medical University
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Yoshida Zen-ichi
Department Of Applied Chemistry Faculty Of Science And Engineering Kinki University
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Fukuoka Masahiro
Department of Chemical Engineering, Kyoto University
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Asako Yoshinobu
Department of Synthetic Chemistry, Kyoto University
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Morimoto Masayoshi
Department of Synthetic Chemistry, Kyoto University
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Ohno Toshinobu
Department of Synthetic Chemistry, Kyoto University
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Takada Tomoaki
Department of Chemical Engineering, Kyoto University
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MIKI SADAO
Department of Chemical Engineering, Kyoto University
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