Tosylation and acylation of cellulose in 1-allyl-3-methylimidazolium chloride

Mari Granström, Jari Kavakka, Alistair King, Johanna Majoinen, Valtteri Mäkelä, Juho Helaja, Sami Hietala, Tommi Virtanen, Sirkka Liisa Maunu, Dimitris S. Argyropoulos, Ilkka Kilpeläinen (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    70 Citations (Scopus)

    Abstract

    Tosylation and acylation of cellulose were performed under mild reaction conditions using imidazolium based ionic liquids (ILs) as solvents. The non-degradative nature, lower viscosity, as well as higher solubility of cellulose in [amim]Cl encouraged us to carry out the reactions in this media. The reactions described here were optimised for this particular solvent in order to obtain different cellulose derivatives with high yields, homogeneity and degree of substitution (DS). Two reagents employed for the in situ activation of carboxylic acids were N,N′-carbonyldiimidazole (CDI) and 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide hydrochloride (EDCI). Final products were characterised by solution and solid-state NMR techniques.

    Original languageEnglish
    Pages (from-to)481-488
    Number of pages8
    JournalCellulose
    Volume15
    Issue number3
    DOIs
    Publication statusPublished - 1 Jun 2008
    MoE publication typeNot Eligible

    Keywords

    • 1-Allyl-3-methylimidazolium chloride
    • Cellulose
    • Cellulose modification
    • Ionic liquid
    • Synthesis of cellulose derivatives

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