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ID 34187
フルテキストURL
著者
Liu, Yingin Okayama University
Hotouchi, Naoto Okayama University
Sueishi, Yoshimi Okayama University Kaken ID researchmap
Yamamoto, Shunzo Okayama University
抄録

The kinetics of the hydride transfer reaction between Methylene Blue (MB+) and 1-benzyl-1,4-dihydronicotinamide (BNAH) were studied in 10 % ethanol-90 % water mixed solvents containing β- and γ-cyclodextrins (β-CD and γ-CD). The pseudo-first order rate constant shows kinetic saturation at high initial concentration of BNAH. This indicates the formation of a complex between MB+ and BNAH. The reaction was suppressed by addition of β-CD, but enhanced by addition of γ-CD. MB+ and BNAH were separately accommodated within the β-CD cavity and the cavity walls may protect the activity site of the reactants. On the other hand, in the MB+-BNAH-γ-CD system, the inclusion of the complex between MB+ and BNAH with γ-CD occurred. This effect of γ-CD can distinguish between the productive and non-productive nature of the complex.

キーワード
hydride transfer reaction
reaction mechanism
cyclodextrin
inclusion complexes
1-benzyl-1
4-dihydronicotinamide
Methylene Blue
備考
Digital Object Identifer:10.1007/s10847-005-8119-5
Published with permission from the copyright holder. This is the author's copy of the work, as published in Journal of Inclusion Phenomena and Macrocycle Chemistry, April 2006, Volume 54, Issue 3-4, Pages 233-239.
Publisher URL: http://dx.doi.org/10.1007/s10847-005-8119-5
Direct access to Thomson Web of Science record
Copyright © 2005 Springer Netherlands. All rights reserved.
発行日
2006-4
出版物タイトル
Journal of Inclusion Phenomena and Macrocycle Chemistry
54巻
3-4号
開始ページ
233
終了ページ
239
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Web of Science KeyUT
Submission Path
physical_and_theoretical_chemistry/4