In a convergent, template‐directed synthesis, an efficient route to a phenylene‐ethynylene‐butadiynylene based [2]catenane is described. The key step is performed by the aminolysis of the corresponding precatenane, which is obtained by a sequence of metal‐catalyzed cross‐coupling and desilylation reactions. The cyclization reaction leads besides the [2]precatenane to a variety of larger precatenanes and offers an attractive approach to mechanically interlocked structures of different size.

中文翻译：

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纳米级苯二乙炔丁二炔[2]癸烷

在会聚的，模板指导的合成中，描述了一种基于苯撑-乙炔撑-丁二炔撑的[2] catenane的有效途径。关键步骤是通过相应的链烷烃的氨解来进行的，该链烷烃是通过一系列金属催化的交叉偶联和甲硅烷基化反应获得的。除[2]链烷烃外，环化反应还导致各种较大的链烷烃，并为不同尺寸的机械互锁结构提供了一种有吸引力的方法。