Journal
ORGANIC LETTERS
Volume 12, Issue 15, Pages 3285-3287Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol100883k
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Funding
- National Natural Science Foundation of China [20774086, 20834004]
- National Basic Research Program [2009-CB930104]
- Central Universities [2009QNA3008]
- SRF [J20080410]
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Three copillar[5]arenes, pillar[5]arenes containing different repeating units, were successfully prepared by co-oligomerization of different monomers. It was demonstrated that the yields of pillararenes could be improved by using hydroquinone diethers with appropriate aliphatic chain lengths. Pseudorotaxane-type threaded structures were obtained in the solid state by the inclusion of an n-hexane molecule into the cavity of either a homopillar[5]arene, a pillar[5]arene containing only one repeating unit, or a copillar[5]arene.
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