以对苯二甲酸和1-苯基-3-甲基-5-吡唑啉酮为原料在氧化钙催化下合成了1,4-双[4(1-苯基-3-甲基-5-吡唑啉酮)羰基]苯,其产率可达88%.由于其具有莹光性能,故是稀土元素配合物的优良配体.通过IR、1 H NMR、13C NMR谱图对其结构进行分析,发现产物中存在酮式与烯醇式的互变异构体,并考察该化合物热稳定性和UV光谱特性.
【英文摘要】
In the paper,1,4-bis[4(1-phenyl-3-methylpyrazol-5-one)carbonyl]benzene was synthesized from terephthalic acid and 1-benyl-3-methyl-5-pyrazolone in the presence of calcium oxide;its structure has been characterized by means of IR,1 H NMR and 13 C NMR spectra,and the thermal stability and UV spectrometry have been investigated.