Ring-opening reactions of cyclic ethers. IX. Molecular weight distribution of adducts in the acid- catalyzed reactions of epichlorohydrin with alcohols.
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概要
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It was found that the molecular weights of adducts in the acid-catalyzed reactions of epichlorohydrin with alcohols obey the Weibull-Nycander distribution but not the Flory distribution. The distribution constants (<I>C</I>=<I>k<SUB>i</SUB></I>⁄<I>k</I><SUB>0</SUB>) were found to be smaller than 1, indicating that the reaction rate of the initial stage (<I>k</I><SUB>0</SUB>), <I>i.e.</I>, the reaction of epichlorohydrin with a starting alcohol, is greater than the rates of the later stages (<I>k<SUB>i</SUB></I>), <I>i.e.</I>, the reactions of epichlorohydrin with its adducts. The results indicate that the reaction proceeds <I>via</I> an "borderline" A-2 mechanism.
- 公益社団法人 日本化学会の論文
著者
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Hasegawa Yasushi
Department Of Applied Chemistry Muroran Institute Of Technology
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Nakamura Kenji
Department Of Anatomy Graduate School Of Medicine Osaka City University
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Sekiguchi Shizen
Department of Chemistry, Faculty of Engineering, Gunma University
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Matsui Kohji
Department of Chemistry, Faculty of Engineering, Gunma University
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Hasegawa Yasushi
Department of Synthetic Chemistry, Gnnma University
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Nagahama Kensuke
Department of Synthetic Chemistry, Gnnma University
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Nakamura Kenji
Department of Synthetic Chemistry, Gnnma University
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