Discogens Possessing Aryl Side Groups Synthesized by Suzuki Coupling of Triphenylene Triflates and Their Self-Organization Behavior
作者:Ke-Qing Zhao、Yue Gao、Wen-Hao Yu、Ping Hu、Bi-Qin Wang、Benoît Heinrich、Bertrand Donnio
DOI:10.1002/ejoc.201600270
日期:2016.6
triphenylene triflate precursors by Suzuki coupling reactions with various commercial arylboronic acids (e.g., aryl = phenylene, thiophene, naphthalene, triarylamine, carbazole, and fluorene). The synthesized discogens display broad mesophase ranges and high thermal stabilities. Moreover, those bearing triarylamine, carbazole, and fluorene side groups are also blue-light emitters. The availability of the triflate
Pd催化的芳基硼酸和溴芳烃之间的Suzuki交叉偶联反应已广泛应用于液晶材料的合成。然而,尽管芳基三氟甲磺酸酯衍生物具有较高的化学耐受性、反应性和化学可及性,但其使用较少。在本报告中,通过 Suzuki 与各种商业芳基硼酸(例如,芳基 = 亚苯基、噻吩、萘、三芳基胺、咔唑和芴)的偶联反应,从适当的三氟甲磺酸三苯联苯前体以良好的产率合成了三个系列的圆盘基。合成的圆盘基显示出广泛的中间相范围和高热稳定性。此外,带有三芳胺、咔唑和芴侧基的那些也是蓝光发射体。