Volume 55, Issue 43 pp. 13549-13552
Communication

Harnessing the Dual Properties of Thiol-Grafted Cellulose Paper for Click Reactions: A Powerful Reducing Agent and Adsorbent for Cu

Dr. Jordi Rull-Barrull

Dr. Jordi Rull-Barrull

Université de Nantes, UFR des Sciences et des Techniques, CNRS UMR 6230, CEISAM, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France

These authors contributed equally to this work.

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Martin d'Halluin

Martin d'Halluin

Université de Nantes, UFR des Sciences et des Techniques, CNRS UMR 6230, CEISAM, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France

These authors contributed equally to this work.

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Dr. Erwan Le Grognec

Dr. Erwan Le Grognec

Université de Nantes, UFR des Sciences et des Techniques, CNRS UMR 6230, CEISAM, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France

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Prof. Dr. François-Xavier Felpin

Corresponding Author

Prof. Dr. François-Xavier Felpin

Université de Nantes, UFR des Sciences et des Techniques, CNRS UMR 6230, CEISAM, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France

Institut Universitaire de France, 1, rue Descartes, 75005 Paris Cedex 5, France

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First published: 23 September 2016
Citations: 30

Graphical Abstract

Looks good on paper: An approach that exploits the dual properties of thiol-grafted cellulose paper for promoting copper-catalyzed [3+2]-cycloaddition of organic azides with alkynes and adsorbing residual copper species in solution was developed. Thiol-grafted cellulose paper effects the reduction of CuII to catalytically active CuI and acts as a powerful adsorbent for copper, thereby facilitating the work-up process.

Abstract

A new approach exploiting the dual properties of thiol-grafted cellulose paper for promoting copper-catalyzed [3+2]-cycloadditions of organic azides with alkynes and adsorbing residual copper species in solution was developed. The thiol-grafted cellulose paper, used as a paper strip, effects the reduction of CuII to catalytically active CuI and acts as a powerful adsorbent for copper, thereby facilitating the work-up process and leaving the crude mixture almost free of copper residues after a single filtration.

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