Selective alkylation of phenol with tert-butyl alcohol catalyzed by Bronsted acidic imidazolium salts

被引：101

作者：

Gui, JZ

Ban, HY

Cong, XH

Zhang, XT

Hu, ZD

Sun, ZL ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

[2] Liaoning Univ Petr & Chem Technol, Coll Petrochem Engn, Liaoning 113001, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 225卷 / 01期

基金：

中国国家自然科学基金;

关键词：

alkylation; phenol; tert-butyl alcohol; acid catalysis; ionic liquid;

D O I：

10.1016/j.molcata.2004.08.026

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：

Alkylation reaction of phenol with tert-butyl alcohol (TBA) catalyzed by SO3H-functionalized ionic liquids has been investigated. The influences of different ionic liquids, reaction time, reaction temperature, reactant ratio (mole ratio of phenol to that of TBA), the amount and the recycle of ionic liquid were studied. The conversion of phenol and the selectivity of 2,4-DTBP were 80.4 and 60.2%, respectively, under optimum reaction condition. At the same time, the reaction mechanism was discussed based on the distribution of products. (C) 2004 Elsevier B.V. All rights reserved.

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页码：27 / 31

页数：5

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