引用本文:
孙晶, 王葆生, 颜朝国. 2-芳基乙烯基苯并噻唑的催化合成及其紫外光谱的取代基效应[J]. 应用化学,
2003, 20(7): 712-714.
Citation: SUN Jing, WANG Bao-Sheng, YAN Chao-Guo. Catalytic Synthesis and Substituent Effect on Ultraviolet Spectra of 2-Styrylbenzoxazoles[J]. Chinese Journal of Applied Chemistry, 2003, 20(7): 712-714.
Citation: SUN Jing, WANG Bao-Sheng, YAN Chao-Guo. Catalytic Synthesis and Substituent Effect on Ultraviolet Spectra of 2-Styrylbenzoxazoles[J]. Chinese Journal of Applied Chemistry, 2003, 20(7): 712-714.
2-芳基乙烯基苯并噻唑的催化合成及其紫外光谱的取代基效应
English
Catalytic Synthesis and Substituent Effect on Ultraviolet Spectra of 2-Styrylbenzoxazoles
Abstract:
In the presence of solid base catalyst KF-Al2O3, 2-methylbenzothiazole was condensated with aromatic aldehydes in DMF to give 2-styrylbenzothiazoles in yields of 80% to 92%. The maxinum absorption frequencies of the ultraviolet spectra in sixteen organic solvents finely correlate with the Hammett's substituent coefficients.
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Key words:
- methylbenzothiazole
- / aromatic aldehyde
- / condensation reaction
- / KF-Al2O3
- / ultraviolet spectrum
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