Trifluoromethyl acting as stopper in [2]rotaxane | Zendy

Suvankar Dasgupta | Zendy; KuoWei Huang | Zendy; Jishan Wu | Zendy

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Trifluoromethyl acting as stopper in [2]rotaxane

Author(s) -

Suvankar Dasgupta,

KuoWei Huang,

Jishan Wu

Publication year - 2012

Publication title -

chemical communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.837

H-Index - 333

eISSN - 1364-548X

pISSN - 1359-7345

DOI - 10.1039/c2cc31009k

Subject(s) - trifluoromethyl , rotaxane , dumbbell , chemistry , ether , group (periodic table) , crown ether , stereochemistry , crystallography , organic chemistry , supramolecular chemistry , alkyl , crystal structure , ion , physical therapy , medicine

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.

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