Alkylation of Hydroquinone with tert-Butanol Catalyzed by Polymer-supported Sulfonimide

被引：2
|
作者：
Zhengbo Zhang
Fei Zhou
Jin Nie
机构：
[1] Huazhong University of Science and Technology,Department of Chemistry
[2] Hubei Key Laboratory of Materials Chemistry & Service Failure,undefined
来源：
Catalysis Letters | 2007年 / 119卷
关键词：
Polymer-supported; Brønsted acid; Perfluorobutylsulfonylimide; 2-; -Butylhydroqinoe; 2,5-Di-; -butylhydroqinoe; Alkylation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Polystyrene with pendant perfluorobutylsulfonylimide (PPFSI) was developed as a novel polymer-supported strong acid catalyst for alkylation of hydroquinone (HQ) with tert-butanol (TBA), and highly selective synthesis of 2-tert-butyl hydroquinone (2-TBHQ) was investigated over PPFSI under various experiment conditions. When the molar ratio of TBA to HQ was 1.2:1, using 3 mol% of PPFSI as catalyst in 1,2-dichloroethane at 130 °C for 5 h, the maximum of selectivity (85.9%) of 2-TBHQ was obtained while the conversion of HQ was 76.7%. Compared with other solid acid catalysts PPFSI was found to be a very effective and reusable catalyst for alkylation of hydroquinone with tert-butanol.
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页码：271 / 276
页数：5
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