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

被引：76

作者：

Granstrom, Mari ^{[1
]}

Kavakka, Jari ^{[1
]}

King, Alistair ^{[1
]}

Majoinen, Johanna ^{[1
]}

Makela, Valtteri ^{[1
]}

Helaja, Juho ^{[4
]}

Hietala, Sami ^{[2
]}

Virtanen, Tommi ^{[2
]}

Maunu, Sirkka-Liisa ^{[2
]}

Argyropoulos, Dimitris S. ^{[3
]}

Kilpelainen, Ilkka ^{[1
]}

机构：

[1] Univ Helsinki, Dept Chem, Organ Chem Lab, FIN-00014 Helsinki, Finland

[2] Univ Helsinki, Dept Chem, Polymer Chem Lab, FIN-00014 Helsinki, Finland

[3] N Carolina State Univ, Organ Chem Wood Components Lab, Raleigh, NC 27695 USA

[4] Univ Helsinki, Dept Chem, FIN-00014 Helsinki, Finland

来源：

CELLULOSE | 2008年 / 15卷 / 03期

关键词：

1-allyl-3-methylimidazolium chloride; cellulose; cellulose modification; ionic liquid; synthesis of cellulose derivatives;

D O I：

10.1007/s10570-008-9197-5

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

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.

引用

页码：481 / 488

页数：8

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