给吸电子基对1,3,5-三芳基吡唑啉的荧光性质影响研究

Effect of the Electron-Absorbing Group on the Fluorescent Properties of 1,3,5-Triarylpyrazoline

以取代苯甲醛和取代苯乙酮为原料,首先合成查尔酮化合物,并在维生素B1催化下与苯肼继续反应,合成6种1,3,5-三芳基吡唑啉化合物,产率为75%~93%;该方法操作便捷,无需酸碱和金属离子,维生素B1催化效果好、无毒、绿色环保可商购;对产物进行了FT-IR、1H NMR和HR-MS表征,确定化合物的结构;通过对所合成化合物荧光光谱的测定,得出1,3,5-三芳基吡唑啉中芳环上的取代基对其荧光光谱的影响规律。

In this paper,six 1,3,5-triarylpyrazoline compounds were synthesized under the catalysis of vitamin B 1 by using substituted benzaldehyde and substituted acetophenone,with a yield of 75%~93%.The method is convenient to operate and does not require acid,alkali and metal ions,vitamin B 1 has good catalytic effect,non-toxic,green environmental protection can be commercially purchased.FT-IR,1H NMR,and HR-MS characterization were performed to determine the structure of the compound.The influence of the substituents on the fluorescence spectra of 1,3,5-triarylpyrazoline was studied by measuring the fluorescence spectra.