One-step synthesis of 2,5-dihydroxyterephthalic acid by the oxidation of p-xylene over M-MCM-41 (M = Fe, Fe/Cu, Cu) catalysts

被引：15
作者：
Li, Ying [1 ,2 ]
Duan, Deliang [1 ]
Wu, Mingzhu [1 ,2 ]
Li, Junjie [1 ]
Yan, Zhiying [1 ]
Wang, Wei [1 ]
Zi, Guoli [1 ]
Wang, Jiaqiang [1 ]
机构：
[1] Yunnan Univ, Yunnan Prov Collaborat Innovat Ctr Green Chem Lig, Yunnan Prov Engn Res Ctr Photocatalyt Treatment I, Sch Energy,Sch Chem Sci & Technol,Univ Ctr Photoc, Kunming 650091, Peoples R China
[2] Chongqing Ind Polytech Coll, Chem & Mat Res Ctr, Chongqing 401120, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2016年 / 306卷
基金：
中国国家自然科学基金;
关键词：
Oxidation; p-Xylene; 2,5-Dihydroxyterephathalic acid; MCM-41; Catalyst; METAL-ORGANIC FRAMEWORK; ORTHO-HYDROXYLATION; HYDROGEN-PEROXIDE; BENZOIC-ACIDS; AROMATICS; BINDING;
D O I：
10.1016/j.cej.2016.08.017
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
One-step hydroxylation of C-H (sp(2)) of aromatic ring synchronized with the oxidation of C-H (sp(3)) of side chain of p-xylene to 2,5-dihydroxyterephathalic acid was performed using M-MCM-41 (M = Fe, Fe/Cu, Cu) as the catalysts. Cu-MCM-41 (Cu:Si = 1:100) catalyst exhibited good selectivity (73.0%) of 2,5-dihydroxyterephathalic acid and conversion (21.7%) of p-xylene using acetic acid and acetonitrile (V: V = 3:7) as the solvents at 80 degrees C for 5 h. The possible mechanism of the oxidation of p-xylene to 2,5-dihydroxyterephathalic acid was proposed and would guide us to design high performance catalyst for sp(2) and sp(3) C-H oxidation. This procedure is also expected to be an alternative method to Kolbe-Schmitt Process for the synthesis of o-hydrobenzoic acids and their derivatives. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：777 / 783
页数：7
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