Synthesis of [3]Rotaxanes that Utilize the Catalytic Activity of a Macrocyclic Phenanthroline-Cu Complex: Remarkable Effect of the Length of the Axle Precursor
作者:Yoshiaki Yamashita、Yuichiro Mutoh、Ryu Yamasaki、Takeshi Kasama、Shinichi Saito
DOI:10.1002/chem.201405090
日期:2015.1.26
[3]Rotaxanes, which consist of one macrocyclic phenanthroline compound and two axle components, were prepared by the oxidative dimerization of an alkyne compound with bulky tris[4′‐cyclohexyl‐(1,1′‐biphenyl)‐4‐yl]methyl blocking group. The catalytic activity of a macrocyclic phenanthroline–Cu complex was utilized to thread the two axle components inside the ring. The alkyne compound with chain of 15
[3]轮烷烷由一种大环三[4'-环己基-(1,1'-联苯)-4-基]甲基与炔烃化合物氧化二聚制备,它由一种大环菲咯啉化合物和两个车轴组分组成阻止组。大环菲咯啉-Cu配合物的催化活性被用于将两个轴组件穿入环中。带有15个或20个亚甲基链的炔烃化合物可高产率地得到[3]轮烷,而带有6个亚甲基链的轴则以非常差的产率得到[3]轮烷。我们还研究了环大小对[3]轮烷的合成的影响。[3]当使用具有较小环尺寸的大环菲咯啉化合物时,未分离出轮烷。