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Article Dans Une Revue Angewandte Chemie International Edition Année : 2023

An Interlocked Figure‐of‐Eight Molecular Shuttle

Résumé

Here is reported the synthesis and characterization of an interlocked figure‐of‐eight rotaxane molecular shuttle from a dibenzo‐24‐crown‐8 (DB24C8) derivative. This latter bears two molecular chains, whose extremities are able to react together by click chemistry. One of the two substituting chain holds an ammonium function aimed at driving the self‐entanglement through the complexation of the DB24C8 moiety. In the targeted figure‐of‐eight rotaxane, shuttling of the DB24C8 along the threaded axle from the best ammonium station to the weaker binding site triazolium was performed through deprotonation or deprotonation‐then‐carbamoylation of the ammonium. This way, two discrete co ‐conformational states were obtained, in which the folding and size of the two loops could be changed.

Domaines

Chimie

Dates et versions

hal-04628884 , version 1 (28-06-2024)

Identifiants

Citer

Maxime Gauthier, Karine Fournel-Marotte, Caroline Clavel, Philip Waelès, Philippe Laurent, et al.. An Interlocked Figure‐of‐Eight Molecular Shuttle. Angewandte Chemie International Edition, 2023, 62 (44), ⟨10.1002/anie.202310643⟩. ⟨hal-04628884⟩
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