nicotinate with various aryl methyl ketones in benzene in the presence of sodium amide as the base, and then reacted with boron trifluoride diethyl etherate in dichloromethane to afford some new boron difluoride pyridyl-β-diketonate derivatives. The compounds obtained were characterized using FTIR, (1)H NMR, elemental analysis and mass spectrometry. Their optical properties were studied in DMF by UV-vis
在酰胺
钠为碱的情况下,通过
烟酸乙酯与各种芳基甲基酮在苯中的克莱森缩合反应合成五个
吡啶基-
β-二酮,然后使其与
二氯甲烷中的
三氟化硼二
乙基醚反应生成一些新的二
氟化硼吡啶基-β。 -二
酮酸酯衍
生物。使用FTIR,(1)H NMR,元素分析和质谱对得到的化合物进行表征。通过紫外可见吸收和荧光光谱研究了它们在
DMF中的光学性质。结果表明,这些
硼配合物在紫外辐射下在蓝绿色区域(420-490 nm)中表现出强烈的荧光,具有相对较高的量子产率。特别地,与化合物1b,2b和3b相比,化合物4b和5b显示出更高的量子产率。