A facile synthetic method involving SNAr coupling of 4-fluoronitrobenzene to arylamines, followed by reduction of the nitro groups, has been developed. The method allows the preparation of symmetric (NH2/NH2 end-capped) and asymmetric (Ph/NH2 end-capped) oligoanilines of even or odd chain lengths. The preparation of the NH2/NH2 end-capped trimer to octamer and Ph/NH2 end-capped trimer to pentamer is described. The effect of the chain length on the spectroscopic properties of the oxidized oligomers has been investigated by UV-Vis-NIR spectroscopy.
                                    我们开发了一种简便的合成方法,涉及 4-
氟硝基苯与芳基胺的 SNAr 偶联,然后还原硝基。该方法可制备偶数或奇数链长的对称(NH2/NH2 端封端)和不对称(Ph/NH2 端封端)寡
苯胺。介绍了从 NH2/NH2 端封端三聚体到八聚体和从 Ph/NH2 端封端三聚体到五聚体的制备过程。紫外-可见-近红外光谱法研究了链长对氧化低聚物光谱特性的影响。