Issue 40, 2012
From the journal:

Chemical Communications

Trifluoromethyl acting as stopper in [2]rotaxane†

Suvankar Dasgupta,a   Kuo-Wei Huangb  and  Jishan Wu*a  

* Corresponding authors

a Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
E-mail: chmwuj@nus.edu.sg
Fax: (+65) 6779 1691
Tel: (+65) 6516 2677

b King Abdullah University of Science and Technology (KAUST), Division of Chemical and Life Sciences and Engineering and KAUST Catalysis Center, Thuwal 23955-6900, Saudi Arabia

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.

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

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Article information

DOI
https://doi.org/10.1039/C2CC31009K
Article type
Communication
Submitted
11 Feb 2012
Accepted
23 Mar 2012
First published
23 Mar 2012

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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