Nitration of aromatic compounds with NO2/air catalyzed by sulfonic acid-functionalized ionic liquids

被引：73
|
作者：
Cheng, Guangbin [1 ]
Duan, Xuelei [1 ]
Qi, Xiufang [1 ]
Lu, Chunxu [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Dept Chem, Sch Chem Engn, Nanjing 210094, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2008年 / 10卷 / 02期
关键词：
Nitration; NO2/air; Ionic liquid;
D O I：
10.1016/j.catcom.2008.08.019
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nitration of aromatic compounds with NO2/air catalyzed by sulfonic acid-functionalized ionic liquid under solvent-free conditions is reported. A variety of ionic liquids [BSPy][HSO4], [BSPy][TfO], and [BSPy][pTSA] ([BSPy] = N-(4-hydroxsulfonylbutyl) pyridinium) were prepared. Their acidities were further investigated by Hammett method and the acidity-catalytic relationship was discussed. It was found that satisfactory results were obtained with [BSPy][HSO4], Ionic liquids could be conveniently separated with the products and reused for five times with excellent yield of mono-nitration products and para-selectivity. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：201 / 204
页数：4
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