Chin. J. Org. Chem. ›› 1995, Vol. 15 ›› Issue (4): 388-393. Previous Articles     Next Articles

Original Articles

苯并碲唑衍生的多次甲基苯乙烯菁染料的合成

罗学红;刘秀芳;徐汉生   

  1. 武汉大学化学系
  • 发布日期:1995-08-25

synthesis of polymethine styrylcyanines drived from benzotellurazoles

LUO XUEHONG;LIU XIUFANG;XU HANSHENG   

  • Published:1995-08-25

This paper reported the synthetic method of polymethine styrylcyanines from benzotellurazolium iodides. The above salts and 4-(dimethylamino) benzaldehyde of 4-(dimethylamino) cinnamaldehyde were equimolecularly mixed and refluxed in n-butanol gave dimethine or tetramethine styrylcyanines in high yielsa, respectively. This reaction was catalyzed by the aldehyde itself without using other organic bases. The reaction mechanism and the absorption spectra of the dyes were also discussed.

Key words: SYNTHESIS, CYANINE DYES

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