A mechanistic insight into the organocatalytic properties of imidazolium-based ionic liquids and a positive co-solvent effect on cellulose modification reactions in an ionic liquid

被引：44
|
作者：
Kakuchi, Ryohei [1 ]
Ito, Ryo [3 ]
Nomura, Shuhei [1 ]
Abroshan, Hadi [5 ]
Ninomiya, Kazuaki [2 ]
Ikai, Tomoyuki [3 ,4 ]
Maeda, Katsuhiro [3 ,4 ]
Kim, Hyung J. [5 ,6 ]
Takahashi, Kenji [1 ]
机构：
[1] Kanazawa Univ, Inst Sci & Engn, Fac Nat Syst, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan
[2] Kanazawa Univ, Inst Frontier Sci Initiat, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan
[3] Kanazawa Univ, Coll Sci & Engn, Grad Sch Nat Sci & Technol, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan
[4] Kanazawa Univ, Coll Sci & Engn, Res Ctr Sustainable Energy & Technol, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan
[5] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
[6] Korea Inst Adv Study, Sch Computat Sci, Seoul 02455, South Korea
来源：
RSC ADVANCES | 2017年 / 7卷 / 16期
基金：
美国国家科学基金会;
关键词：
TRANSESTERIFICATION REACTIONS; ACETATE; DISSOLUTION; DENSITY; POLYMERIZATION; SOLVATION; EFFICIENT; CHARGES; SALTS; RESP;
D O I：
10.1039/c6ra28659c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Detailed insights into the organocatalytic properties of imidazolium-based ionic liquids (Im-ILs) for transesterification of cellulose with isopropenyl acetate (IPA) are presented. According to model transesterification reactions and their computational analysis, acetate anions of Im-ILs play an essential role in the promotion of the reactions. Mechanistic considerations in the optimization of the protocol of IL-catalyzed transesterification reactions have enabled a significant improvement in reaction conditions and a positive co-solvent effect for cellulose modifications in an imidazolium acetate ionic liquid.
引用
收藏
页码：9423 / 9430
页数：8
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