乙醇胺缩己酰基吡唑啉酮的合成与表征

Synthesis and Characterization of Ethanolamine Succinylpyrazolone

以1-苯基-3-甲基-吡唑啉酮-5为母体,设计合成出4-己酰基吡唑啉酮(HL),再将HL与乙醇胺在乙醇中反应得新型席夫碱配体HQ。应用光学和热学分析检测仪器对合成产物席夫碱HQ进行了性能表征。红外光谱中发现产物中有定义席夫碱的-C=N-特征振动吸收峰,并且存在-OH峰,说明席夫碱合成成功且以烯醇式形式存在。荧光光谱中表明HQ具有荧光性能,有望成为荧光材料。热学分析测试结果探究了HQ的热稳定性,并且明确指出产物存在并且应用环境的温度不高于350℃。

The 1-phenyl-3-methyl-pyrazolone-5 was used as the matrix to synthesize 4-hexanoyl pyrazolone（HL）, and then a new kind of Schiff base ligand HQ was prepared by the reaction between HL and ethanolamine in ethanol. The performance of Schiff base HQ was characterized by optical and thermal analysis. In the infrared spectrum, the-C=N-characteristic vibration absorption peak of Schiff base was found in the product,and there was an-OH peak, which indicated that the Schiff base was successfully synthesized and was in the form of enol. The fluorescence spectrum indicated that the HQ had fluorescence and was expected to become fluorescent material. The thermal analysis had explored the thermal stability of HQ and clearly indicated that the product＇s presence and application temperature should not be higher than 350℃.