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Royal Society of Chemistry, Chemical Communications, 40(48), p. 4821

DOI: 10.1039/c2cc31009k

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Trifluoromethyl acting as stopper in [2]rotaxane

Journal article published in 2012 by Suvankar Dasgupta, Kuo-Wei Huang ORCID, Jishan Wu
This paper is available in a repository.
This paper is available in a repository.

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Abstract

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. © 2012 The Royal Society of Chemistry.