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Citation: LIU Wei-Wei, OU Song, WANG Bing-Xiang, HU Hong-Wen. Synthesis of Dimethine-cyanines Containing Indolizine Ring[J]. Chinese Journal of Applied Chemistry, ;2004, 21(6): 581-584. shu

Synthesis of Dimethine-cyanines Containing Indolizine Ring

1.
Department of Chemistry, Nanjing University, Nanjing 210093

Corresponding author: HU Hong-Wen,
Received Date: 30 June 2003
Available Online: 14 October 2003
Fund Project: 国家自然科学基金资助项目(20072016) (20072016)

3-Thioformylindolizines derivatives were condensed with 1,2-dimethylquinolinium iodide or 1,4-dimethylquinolinium iodide, respectively, in the presence of piperidine to give a series of dimethine-cyanines containing indolizine ring. Their structures were comfirmed by elemental analysis, IR, ¹H NMR and MS spectroscopy. The fluorescence properties of the compounds in the solid state were studied. Their luminescence properties in solid state were determined preliminary. The results showed that nine compounds 5a, 5b, 5c, 5d, 5e, and 6a, 6d, 6e and 6f exhibited emission wavelengths above 400 nm, showing potential applications in luminescent materials.
- thioformylindolizines(thioaldehyde),
- dimethylpyridinium iodide,
- dimethine-cyanines,
- fluorescence
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