Chem. J. Chinese Universities

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Syntheses and Fluorescent Property of 5-(2-Phenyl-1,2,3-triazoly)-3-aryl Pyrazoline Derivatives

LI Fang1,XIE Zheng-Feng1, LIU Fang-Ming1,2*   

  1. 1. College of Chemistry and Chemical Engineering, Xinjiang University, Ulumqi 830046, China;
    2. Department of Chemistry, Hangzhou Teachers College, Hangzhou 310012, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-06-10 Published:2006-06-10
  • Contact: LIU Fang-Ming

Abstract: Four chalcones were synthesized by aldol condensation reaction of acetophenone or parasubstituted acetophenones with 2-phenyl-1,2,3triazol-4-carboxaldehyde, which reacted with three hydrazines in glacial acetic acid under refluxing to give a series of pyrazoline derivatives. The structures wer confirmed by means of IR spectrum, 1H NMR and element analyses. The fluorescent spectra of twelve compounds were detected. The results show that the compounds have fluorescence. The fluorescence emission wavelength of compounds 3a—3d is about 380 nm. The effect of diffient substituents on the fluorescence intensity was investigated.

Key words: Chalcone, 1,2,3-Triazole, Pyrazoline, Fluorescent compounds

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