一种新型羧酸化合物的合成研究

Synthesis and Characterization of a New Carboxylic Acid

本文以对溴苄胺和对溴苯甲醛为起始原料,经取代反应、钯催化的Suzuki偶联反应、碱性水解反应及酸化反应合成了一种新型半刚性三角形羧酸化合物:4′,4″,4′″-(nitrilotris(methylene))tris([1,1’-biphenyl]-4-carboxylic acid)(H3L),通过^1H NMR、^13C NMR、FT-IR等手段对其结构进行表征,结果表明,该化合物兼具刚性和柔性特征,并测试了其溶液发光性能,在309.16 nm的光激发下得到最大发射波长为402.6 nm的可见蓝紫光。

A new semi-rigid triangular carboxylic acid compound 4′,4″,4′″-(nitrilotris(methylene))tris(([1,1’-biphenyl]-4-carboxylic acid))(H3L)was synthesized by using bromobenzylamine and p-bromobenzaldehyde as starting materials.The reaction process includes substitution reaction,palladium-catalyzed Suzuki coupling reaction,alkaline hydrolysis reaction and acidification reaction.The structure was characterized by ^1H nuclear magnetic resonance(NMR),^13C NMR and Fourier transform infrared spectroscopy(FT-IR),etc.The results show that the compound has both the characteristics of rigidity and flexibility,and the luminescent properties of its solution are tested.Under the excitation of 309.16 nm,the visible blue violet light with the maximum emission wavelength of 402.6 nm is obtained.