Dynamic covalent chemistry of a boronylammonium ion and a crown ether: Formation of a C3-symmetric [4]rotaxane
2008
Abstract This Letter describes an efficient method for constructing a C 3 -symmetric [4]rotaxane through hydrogen bond-guided self-assembly and boroxine formation. The reactions proceed under mild conditions in solution, with entropically driven forces promoting the formation of the [4]rotaxane.
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