Chin. J. Org. Chem. ›› 2006, Vol. 26 ›› Issue (10): 1389-1393. Previous Articles     Next Articles

Original Articles



  1. (a西北大学化学系 西安 710069)
    (b西北大学现代物理研究所 西安 710069)
  • 收稿日期:2006-01-17 修回日期:2006-03-21 发布日期:2006-09-19
  • 通讯作者: 王兰英

Microwave-Assisted Solvent-Free Synthesis of 2-Substituted Pyridinium Hemicyanine Dyes with Theoretical Study of Spectrum Property

FAN Fang-Lia,QIAO Ze-Banga,CHEN Qin-Wena,WANG Lan-Ying*,a
WEN Zhen-Yib,ZHANG Zu-Xuna   

  1. (a Department of Chemistry, Northwest University, Xi'an 710069)
    (b Insititute of Modern Physics, Northwest University, Xi'an 710069)
  • Received:2006-01-17 Revised:2006-03-21 Published:2006-09-19
  • Contact: WANG Lan-Ying

2-Substituted pyridinium hemicyanine dyes were synthesized in a fast, efficient and high yield by the condensation of 1,2-dimethyl pyridine salts with aromatic aldehydes in the present of piperidine under solvent-free microwave irradiation. The products were identified by 1H NMR, MS, IR, UV-vis spectra and elemental analysis. Furthermore, spectrum property of N-methyl-2-(p-dimethylamino-styryl)pyridine hemicyanine dye was calculated.

Key words: 2-methyl pyridine, aromatic aldehyde, 2-substituted pyridinium hemicyanine dye, microwave irradiation