Chem. J. Chinese Universities

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Synthesis and Fluorescence Properties of 3-Pyridin-3-yl-indolizines

SHEN Zhu-Ying1, WANG Bing-Xiang1*, SHEN Jian1,2, HU Hong-Wen1   

    1. Jiangshu Research Center of Biomedical Functional Materials Engineering, College of Chemistry and Environment Science, Nanjing Normal University, Nanjing 210097, China;
    2. College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
  • Received:2007-10-09 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
  • Contact: WANG Bing-Xiang

Abstract: A one-pot procedure was developed to prepare 3-pyridin-3-yl-indolizines(2a—2c) by a 1,3-dipolar cycloaddition reaction of pyridinium N-ylides to electron-deficient alkenes in the presence of tetrakispyridine cobalt(Ⅱ) dichromate(TPCD). The absorption and fluorescence spectra of compounds 2a—2c in ethanol were measured, and their fluorescence quantum yields were determined. The analysis result of the absorption and fluorescence spectra in different solvents indicates that 3-pyridin-3-yl substituent in indolizine ring apparently affects the fluorescence properties.

Key words: 3-Pyridin-3-yl-indolizine, Tetrakispyridine cobalt(Ⅱ) dichromate, Fluorescence spectrum

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