TY - JOUR
T1 - Tosylation and acylation of cellulose in 1-allyl-3-methylimidazolium chloride
AU - Granström, Mari
AU - Kavakka, Jari
AU - King, Alistair
AU - Majoinen, Johanna
AU - Mäkelä, Valtteri
AU - Helaja, Juho
AU - Hietala, Sami
AU - Virtanen, Tommi
AU - Maunu, Sirkka Liisa
AU - Argyropoulos, Dimitris S.
AU - Kilpeläinen, Ilkka
PY - 2008/6/1
Y1 - 2008/6/1
N2 - 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.
AB - 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.
KW - 1-Allyl-3-methylimidazolium chloride
KW - Cellulose
KW - Cellulose modification
KW - Ionic liquid
KW - Synthesis of cellulose derivatives
UR - http://www.scopus.com/inward/record.url?scp=42649117790&partnerID=8YFLogxK
U2 - 10.1007/s10570-008-9197-5
DO - 10.1007/s10570-008-9197-5
M3 - Article
AN - SCOPUS:42649117790
SN - 0969-0239
VL - 15
SP - 481
EP - 488
JO - Cellulose
JF - Cellulose
IS - 3
ER -