Highly Norbornylated Cellulose and Its “Click” Modification by an Inverse-Electron Demand Diels–Alder (iEDDA) Reaction

Christina Wappl, Viktor Schallert, Christian Slugovc, Astrid-Caroline Knall*, Stefan Spirk*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A facile, catalyst-free synthesis of a norbornylated cellulosic material (NC) with a high degree of substitution (2.9) is presented by direct reaction of trimethylsilyl cellulose with norbornene acid chloride. The resulting NC is highly soluble in organic solvents and its reactive double bonds were exploited for the copper-free inverse-electron demand Diels–Alder (iEDDA) “click” reaction with 3,6-di(pyridin-2-yl)-1,2,4,5-tetrazine. Reaction kinetics are comparable to the well-known Huisgen type 1,3-dipolar cycloaddition of azide with alkynes, while avoiding toxic catalysts
Original languageEnglish
Article number1358
JournalMolecules
Volume26
Issue number5
DOIs
Publication statusPublished - 4 Mar 2021

Fields of Expertise

  • Advanced Materials Science

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