A new inverted cucurbituril, namely inverted hexamethylcucurbit[3,3]uril (iMe Q[3,3]), has been isolated and characterized. It incorporates a single inverted un-substituted glycoluril unit oriented towards the interior of the cavity, shows good solubility in water and organic solvents (DMSO), and exhibits different selectivity for guests to those of iQ[6] and other known Q[6]s.
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http://dx.doi.org/10.1002/chem.201704069 | DOI Listing |
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