Jump to main content
Jump to site search

Issue 9, 2019
Previous Article Next Article

Synthesis of polymer-linked copper(i) bis(N-heterocyclic carbene) complexes of linear and chain extended architecture

Author affiliations

Abstract

Copper(I) bis(N-heterocyclic carbene) (NHC) complexes can be used as catalysts for a wide range of different reactions, like hydrosilylation, CH-activation or copper(I)-catalyzed alkyne/azide cycloaddition (CuAAC) reactions. In this paper a novel synthetic approach towards poly(styrene) (PS)-based copper(I) bis(NHC) complexes with linear and chain extended different architectures and their defined activation for CuAAC by mechanical force is reported. The NHC precursor polymers are synthesized via living RAFT polymerization to ensure defined polymer compositions achieving the N-methylimidazolium functionalization either by modified chain transfer agents (CTA) or via efficient post-polymerization thio-bromo click reactions. Subsequent deprotonation by NaOtBu and coordination to a central copper(I) were used to generate low molecular weight, polymeric linear and chain extended copper(I) bis(NHC) complexes bearing more than one copper(I) center with molecular weights up to 50 000 g mol−1. A mechanochemical activation of these complexes is demonstrated in bulk quantifying the catalytic activity in a fluorogenic CuAAC click reaction with conversions up to 44%, which allows the use of these polymers as stress-sensors.

Graphical abstract: Synthesis of polymer-linked copper(i) bis(N-heterocyclic carbene) complexes of linear and chain extended architecture

Back to tab navigation

Supplementary files

Article information


Submitted
10 Dec 2018
Accepted
03 Feb 2019
First published
05 Feb 2019

Polym. Chem., 2019,10, 1078-1088
Article type
Paper

Synthesis of polymer-linked copper(I) bis(N-heterocyclic carbene) complexes of linear and chain extended architecture

M. Biewend, S. Neumann, P. Michael and W. H. Binder, Polym. Chem., 2019, 10, 1078 DOI: 10.1039/C8PY01751D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements