Issue 35, 2020

Interlocking increases the persistence of N-heterocyclic carbenes in solution

Abstract

In this study imidazolium and imidazolinium centers in precursor [2]rotaxanes were deprotonated to obtain interlocked molecules featuring stabilized N-heterocyclic carbene centers. The encircling macrocyclic components enhanced the persistence of the otherwise unstable imidazolidin-2-ylidenes in solution at 253 K for more than a week in the absence of air.

Graphical abstract: Interlocking increases the persistence of N-heterocyclic carbenes in solution

Supplementary files

Article information

Article type
Communication
Submitted
14 Feb 2020
Accepted
23 Mar 2020
First published
31 Mar 2020

Chem. Commun., 2020,56, 4773-4776

Interlocking increases the persistence of N-heterocyclic carbenes in solution

F. Hsueh, C. Tsai, C. Lai, Y. Liu, S. Peng and S. Chiu, Chem. Commun., 2020, 56, 4773 DOI: 10.1039/D0CC01183E

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