Protic pyridinium ionic liquids: Synthesis, acidity determination and their performances for acid catalysis

被引：138

作者：

Duan, ZY ^{[1
]}

Gu, YL ^{[1
]}

Zhang, J ^{[1
]}

Zhu, LY ^{[1
]}

Deng, YQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Green Chem & Catalysis, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2006年 / 250卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

protic ionic liquids; 2-methylpyridinium; Hammett acidity; Bronsted acidity; acid catalysis;

D O I：

10.1016/j.molcata.2006.01.035

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：

sThree new protic ionic liquids based on 2-methylpyridinium were prepared and characterized. Their catalytic activities for the tert-butylation of phenol and the esterification of cyclic olefins with acetic acid were examined and satisfactory results were obtained over 2-methylpyridinium trifluoromethanesulfonate ([2-MPyH]OTf). Hammett method was used to determine the acidity order of these ionic liquids and the results are consistent with the catalytic activities observed in the acid-catalyzed probe reactions. (c) 2006 Published by Elsevier B.V.

引用

页码：163 / 168

页数：6

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