Radiation-induced reactions of pyridinecarboxylic esters in acidic alcoholic solutions. Substitution by alkyl and hydroxyalkyl groups and reduction of carboxylic esters to alcohol.
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概要
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The main reactions of pyridinecarboxylic esters induced by Co-60 γ-rays in acidic alcoholic solutions are: 1) substitution on the pyridine ring by alkyl or hydroxyalkyl groups derived from solvent alcohols, and 2) reduction of carboxylic esters to alcohol (hydroxymethyl group). Substitution is dominant in methanol solutions and reduction is dominant in 2-propanol solutions. Carboxylic esters at the 2- and 4-positions are selectively reduced to alcohols. Alkylation results from the attack by hydrogen atoms and hydroxylalkyl radicals. Reduction of carboxylic esters to alcohol is effected by the hydroxyalkyl radicals derived from the radiolysis of alcohols.
- 公益社団法人 日本化学会の論文
著者
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Sugimori Akira
Department Of Chemistry Faculty Of Science And Technology Sophia University
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Nakamura Kazuhito
Department Of Neurosurgery Osaka City General Hospital
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Sugiyama Toru
Department Of Chemical Engineering Kyoto University
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Morita Yukari
Department Of Geriatrics Cardiology And Neurology Kochi Medical School Kochi University
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Sugiyama Toru
Department of Chemistry, Faculty of Science and Technology, Sophia University
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Suzuki Toru
Department of Applied Electronics, Faculty of Industrial Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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Morita Yukari
Department of Chemistry, Faculty of Science and Technology, Sophia University
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Nakamura Kazuhito
Department of Chemistry, Faculty of Science and Technology, Sophia University
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