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Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
Published on: August 23, 2018
Systematic rim cyano-functionalization of pillar[5]arene and corresponding host-guest property varieties
Guo Wang1, Hui Qiang, Yun-Zhe Guo
1Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai 201210, China. huwb@sari.ac.cn wenk@sari.ac.cn.
Abstract:
Synthetic investigation of the systematic replacement of alkoxy groups in pillar[5]arene by cyano ones was carried out. 2nCN-pillar[5]arenes (n = 1, 2, 3, 4 or 5) bearing different numbers of cyano functions on their rims were successfully prepared for the first time. Single-crystal X-ray diffraction studies showed that the nCN-pillar[5]arenes had unique conformations in the solid states. Besides, host-guest property studies of those nCN-pillar[5]arenes and 1,4-dicyanobutane showed the functionization number-related host-guest interaction varieties.
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