苯并香豆素酯类衍生物的合成及荧光性质研究

Synthesis and fluorescent property of ester derivatives of benzocoumarin-3-carboxylic acid

以2-羟基-1-萘甲醛为原料,采用改进的Knoevenagel反应合成了苯并香豆素-3-羧酸中间体和4种不同链长的脂肪酯和芳香酯衍生物,采用元素分析和红外光谱对其结构进行了表征.对所有化合物固体粉末的发光性能进行了研究.

The intermediate, benzocoumarin-3-carboxylic acid, and its ester derivatives were prepared from 2-Hydroxy-1-naphthaldehyde by Knoevenagel reaction,and characterized by elemental analysis, IR spectra. Their fluorescent properties were investigated. The result shows that these compounds emit bright blue fluorescence with half-band widths of about 40-60 nm.