Pechmann反应合成4-甲基香豆素及光谱性能的研究

Synthesis and spectral properties of 4-methylcoumarin derivatives by Pechmann reaction

以取代苯酚和乙酰乙酸乙酯为原料,对甲基苯磺酸为催化剂,采用Pechmann反应合成了5个4-甲基香豆素衍生物,采用核磁共振、红外光谱对合成的化合物进行了结构表征,并测定了它们的的紫外吸收光谱和荧光发射光谱等性能。

Five 4-methyl coumarin derivatives were synthesized through Pechmann reaction catalyzed by TsOH with substituted phenols and ethyl acetoacetate as raw materials.The structures of the target products were characterized by 1H NMR and IR,the characteristic properties of UV absorption and fluorescence emission spectra were determined.