Synthesis of Functionalized Oligophenylenes and Oligoarylenes Bearing Heteroaryl Groups
作者:Arne Lützen、Ivonne Wallmann、Gregor Schnakenburg
DOI:10.1055/s-0028-1083260
日期:2009.1
Oligo-p-phenylenes have proven to be versatile building blocks for the generation of self-assembled nanoaggregates via vapour deposition on solid supports whose optical properties and morphologies can be influenced by the introduction of functional groups. These aggregates show strong polarized luminescence and they have been demonstrated to have wave-guiding, lasing and even non-linear optical properties (e.g., frequency doubling) when the molecular building blocks are suitably functionalized. Thus, there is a demand for the synthesis of further functionalised p-phenylenes because similar properties can be expected from derivatives incorporating heteroaryl groups in the oligoarylene scaffold such as thiophenes, pyridines or carbazole units. The synthesis of such derivatives using a reliable Suzuki cross-coupling strategy is presented here.
寡聚对苯基已被证明是通过在固体载体上进行蒸汽沉积生成自组装纳米聚集体的多功能构建模块,其光学性质和形态可以通过引入功能团来影响。这些聚集体显示出强烈的偏振光发光,并且已经证明,当分子建筑块经过适当功能化时,具有波导、激光和甚至非线性光学性质(如频率倍增)。因此,对进一步合成功能化对苯基的需求日益增加,因为可以预期,结合异芳基团的衍生物在寡聚芳烃骨架中,如噻吩、吡啶或咔唑单元,也会展现出类似的特性。这里展示了一种使用可靠的铃木交叉耦合策略合成此类衍生物的方法。