Synthesis and fluorescence property of some novel 1,8-naphthalimide derivatives containing a thiophene ring at the C-4 position
作者:Jin Zhengneng、Li Najun、Wang Chuanfeng、Jiang Huajiang、Lu Jianmei、Zhou Qizhong
DOI:10.1016/j.dyepig.2012.07.018
日期:2013.1
A series of novel 1,8-naphthlimide derivatives containing a thiophene ring at the C-4 position was synthesized through Pd-catalyzed direct C–H bond arylation and characterized by 1H NMR, 13C NMR, MALDI-HRMS and elemental analysis. The crystal structure of N-hexyl-4-(benzo[b]thiophen-2-yl)-1,8-naphthalimide was found to be a kite structure. The moderate π–π stacking interaction between the two core
通过Pd催化的直接C–H键芳基化反应合成了一系列在C-4位置带有噻吩环的新型1,8-萘酰亚胺衍生物,并通过1 H NMR进行了表征,1313 C NMR,MALDI-HRMS和元素分析。发现N-己基-4-(苯并[b]噻吩-2-基)-1,8-萘二甲酰亚胺的晶体结构为风筝结构。两个核心平面(萘二甲酰亚胺环)之间的适度π-π堆积相互作用以及柔性己基之间的范德华力构成3D结构。研究了氯仿中合成化合物的紫外可见光和荧光性质。除N-己基-4-(5-硝基噻吩-2-基)-1,8-萘二甲酰亚胺外,所有化合物均可发出蓝色,绿色或黄色发光。结果表明,在噻吩环上具有给电子基团或具有更大共轭结构的1,8-萘二甲酰亚胺衍生物具有增强的荧光性质。