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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. shu

Catalytic Synthesis and Substituent Effect on Ultraviolet Spectra of 2-Styrylbenzoxazoles

1.
School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 25002

Corresponding author: SUN Jing,
Received Date: 9 November 2002
Available Online: 12 March 2003

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.
- methylbenzothiazole,
- aromatic aldehyde,
- condensation reaction,
- KF-Al₂O₃,
- ultraviolet spectrum
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