Mechanism of the reactions of oxomolybdenum(V) tetraphenylporphyrin complex with alcohols in the presence of superoxide.

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概要

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• The successive addition of ROH (R=CH<SUB>3</SUB> and C<SUB>2</SUB>H<SUB>5</SUB>) to the dichloromethane solution of Mo<SUP>v</SUP>O(tpp)Br (tpp=<I>meso</I>-tetraphenylporphinato) causes two-step reactions at 25 °C. The products of the first and the second step of the reactions are alcohol complex, [Mo<SUP>v</SUP>O(tpp)(ROH)]Br, and alkoxo complex, Mo<SUP>v</SUP>O(tpp)OR, respectively. In the presence of superoxide ion, O<SUB>2</SUB><SUP>−</SUP>, in the dichloromethane solution of Mo<SUP>v</SUP>O(tpp)X (X=Br and NCS) containing alcohol, Mo<SUP>v</SUP>O(tpp)OR is formed through competitive two reaction paths where O<SUB>2</SUB><SUP>−</SUP> acts as a proton acceptor and a reducing agent. The reaction steps of the two paths were confirmed by optical and ESR studies.

• 公益社団法人 日本化学会の論文

著者

• Imamura Taira

  Department Of Chemistry Faculty Of Science Hokkaido University

• Hasegawa Koichi

  Department Of Anesthesiology And Reanimatology Fukui Medical University

• Tanaka Tetsuya

  Department Of Biological Function Graduate School Of Science Osaka City University

• FUJIMOTO Masatoshi

  Department of Chemistry, Faculty of Science, Hokkaido University

• Hasegawa Koichi

  Department of Chemistry, Faculty of Science, Hokkaido University

• Nakajima Wataru

  Department of Chemistry, Faculty of Science, Hokkaido University

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