Conformationally fixed oxacalix[4]arene-bridged pillar[5]arene dimers comprising a pair of enantiomers and a meso isomer were designed and synthesized. Furthermore, chiral [2]rotaxanes and [3]rotaxanes were constructed. Two pairs of enantiomers for [2]rotaxanes, one pair of enantiomers and a meso isomer for [3]rotaxanes were found, respectively.
![Graphical abstract: Oxacalix[4]arene-bridged pillar[5]arene dimers: syntheses, planar chirality and construction of chiral rotaxanes](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=D0CC04375C&imageInfo.ImageIdentifier.Year=2020)
K. Wan, S. Gao, X. Fang, M. Xu, Y. Yang and M. Xue, Chem. Commun., 2020, 56, 10155 DOI: 10.1039/D0CC04375C
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