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Issue 40, 2012
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Trifluoromethyl acting as stopper in [2]rotaxane

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A modified dumbbell obtained by replacing one of the phenyl groups of the dibenzylammonium with a strong electron-withdrawing trifluoromethyl group templated the synthesis of the smallest [2]rotaxane reported so far. The trifluoromethyl group not only enhances the templating effect of the dumbbell but also acts as the stopper to prevent dethreading of a [20]crown ether macrocycle.

Graphical abstract: Trifluoromethyl acting as stopper in [2]rotaxane

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The article was received on 11 Feb 2012, accepted on 23 Mar 2012 and first published on 23 Mar 2012

Article type: Communication
DOI: 10.1039/C2CC31009K
Citation: Chem. Commun., 2012,48, 4821-4823
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    Trifluoromethyl acting as stopper in [2]rotaxane

    S. Dasgupta, K. Huang and J. Wu, Chem. Commun., 2012, 48, 4821
    DOI: 10.1039/C2CC31009K

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