Furans-Maleimides Diels-Alder Reactions in Protic Ionic Liquid

被引：0
|
作者：
Xawkat, Ahmat [1 ]
Ablajan, Keyume [2 ]
Hiraku, Shinozaki [1 ]
机构：
[1] Tokyo Denki Univ, Dept Mat & Life Sci, Grad Sch Adv Sci & Technol, Chiyoda Ku, Tokyo 1018457, Japan
[2] Xinjiang Univ, Inst Chem & Chem Engn, Urumqi 830046, Peoples R China
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2009年 / 25卷 / 02期
关键词：
Diels-Alder reaction; Furan derivative; Maleimide derivative; Protic ionic liquid;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The authors have studied the Diets-Alder reactions between furan derivatives and maleimide derivatives in an ionic liquid and have found that higher reactivity can be obtained in a protic ionic liquid [Mim]Tf2N than in the conventional organic solvent. Furthermore, in the Diels-Alder reactions of 2- and 2,5-alkylfurans with N-alkylmaleimide, the reactivity increases by extending the alkyl chain length of N-alkylmaleimide. In addition, it was demonstrated that endo-selectivity increases when 2,5-disubstituted furans are used. These results will be explained by comparing the stability of the Diels-Alder adduct with that of the products obtained from the reactions of 2-substituted furans and 2,5-disubstituted furans.
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页码：161 / 168
页数：8
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