A series of oligoparaxylene model compounds with two to six paraxylene units was synthesised and the resulting mixtures of atropisomers with one to five axes of chirality were analysed by dynamic 1H NMR spectroscopy. The number of atropisomers was found to constitute part of the Losanitsch series.
我们合成了一系列具有 2 至 6 个对位二
甲苯单元的低聚对位二
甲苯模型化合物,并通过动态 1H NMR 光谱分析了由此产生的具有 1 至 5 个手性轴的对位异构体混合物。结果发现异构体的数量构成了洛桑尼什系列的一部分。