Improvement of Fluorescence Characteristics of Coumarins : Syntheses and Fluorescence Properties of 6-Methoxycoumarin and Benzocoumarin Derivatives as Novel Fluorophores Emitting in the Longer Wavelength Region and Their Application to Analytical Reagents
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概要
- 論文の詳細を見る
To improve the fluorescence characteristics, especially emission wavelength, of coumarins, various 3-substituted-6-methoxycoumarin derivatives were synthesized, and then benzocoumarin derivatives were also synthesized in expectation of the shift to the longer wavelength region by the extension of the conjugated system. Their fluorescence properties were investigated spectrophotometrically in acetonitrile and evaluated from the viewpoint of the intramolecular charge transfer (ICT) between push- and pull-substituents in the ground and the excited states. Among them, benzocoumarin derivatives especially fluoresced in the longer wavelength around 540nm with remarkably large Stokes shifts beyond 10000cm^<-1>. Using such fluorophores, some novel fluorescence derivatization reagents for carboxylic acids, alcohols, phenols, and amines were preliminarily prepared as an example, and their derivatized products were also found to fluoresce in the longer wavelength region with large Stokes shifts.
- 公益社団法人日本薬学会の論文
- 2005-07-01
著者
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Yoshitake Takashi
化学品検査協会
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NOHTA Hitoshi
Faculty of Pharmaceutical Sciences, Fukuoka University
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TODOROKI Kenichiro
Faculty of Pharmaceutical Sciences, Fukuoka University
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YOSHIDA Hideyuki
Faculty of Pharmaceutical Sciences, Fukuoka University
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YAMAGUCHI Masatoshi
Faculty of Pharmaceutical Sciences, Fukuoka University
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Nohta H
Faculty Of Pharmaceutical Sciences Fukuoka University
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Yoshida Hideyuki
Faculty Of Pharmaceutical Sciences Fukuoka University
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Todoroki Kenichiro
Faculty Of Pharmaceutical Sciences Fukuoka University
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Yamaguchi Masatoshi
Faculty Of Pharmaceutical Sciences Fukuoka University
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MURATA Chiyomi
Daiichi College of Pharmaceutical Sciences
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MASUDA Toshinobu
Daiichi College of Pharmaceutical Sciences
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KAMOCHI Yasuko
Daiichi College of Pharmaceutical Sciences
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TAKADATE Akira
Daiichi College of Pharmaceutical Sciences
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Nohta Hitoshi
Faculty Of Pharmaceutical Sciences Fukuoka University
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