N-hexylpyridinium bis(trifluoromethylsulfonyl)imide and Lewis acids - catalytic systems for Diels-Alder reaction

被引：4
作者：
Bittner, Bozena [1 ]
Janus, Ewa [1 ]
Milchert, Eugeniusz [1 ]
机构：
[1] W Pomeranian Univ Technol, Inst Organ Chem Technol, PL-70310 Szczecin, Poland
来源：
CENTRAL EUROPEAN JOURNAL OF CHEMISTRY | 2011年 / 9卷 / 01期
关键词：
Ionic liquids; Lewis-acids; Diels-Alder reaction; Norbornene derivatives; IONIC LIQUIDS; PHYSICAL-PROPERTIES; DIBLOCK COPOLYMERS; POLYMERIZATION; NORBORNENE; MEDIA; SELECTIVITY; ACCELERATION; SOLVENTS; WATER;
D O I：
10.2478/s11532-010-0138-4
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A comparative study of the Diels-Alder reactions between cyclopentadiene (1) and dienophiles (2 a-c) in N-hexylpyridinium bis(trifluoromethylsulfonyl)imide in a temperature range of 20-45A degrees C is reported. The reaction rate constants and activation energies were calculated. Moreover, the catalytic systems based on N-hexylpyridinium bis(trifluoromethylsulfonyl)imide and Lewis acids were tested as a reaction media to perform the Diels-Alder reaction. Yb, Y, Mg, Zn triflates and chlorides (0.005 to 0.1 mmol) were used as catalysts. The recycling of catalytic system consisted of YCl3 and ionic liquid was performed.
引用
收藏
页码：192 / 198
页数：7
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