Coupling of epoxides and carbon dioxide catalyzed by Bronsted acid ionic liquids
Coupling of epoxides and carbon dioxide catalyzed by Bronsted acid ionic liquids
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布朗斯台德酸离子液体催化环氧化物与二氧化碳的偶联
DOI：
10.1016/s1872-2067(14)60227-8
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发表时间：
2015-03-01
影响因子：
16.5
通讯作者：
Jing, Huanwang
中科院分区：
文献类型：
--
作者：
Chang, Tao;Gao, Xiaorui;Jing, Huanwang
设计、合成了一系列阳离子部分含有长链Bronsted酸中心、阴离子部分含有Lewis碱性中心的Bronsted酸性离子液体，并将其用于催化环氧化物和二氧化碳在无助催化剂或共溶剂的情况下合成环状碳酸酯。考察了催化剂结构等参数对催化性能的影响。长链2-(N，N-二甲基十二烷基铵)乙酸溴([(CH2COOH)DMDA]BR)具有较高的催化活性和良好的重复使用性能。将该方案扩展到各种环氧化物，得到了相应的环状碳酸酯，产率较高。催化剂的酸性影响其催化活性。(C)2015年，中国科学院大连化学物理研究所。爱思唯尔出版，版权所有。
A series of Bronsted acid ionic liquids (BAILS) containing a long chain Bronsted acid site in the cationic part and a Lewis basic site in the anionic part were designed, synthesized, and used as catalyst for the coupling of epoxides and carbon dioxide to cyclic carbonates without a co-catalyst or co-solvent. The effects of catalyst structure and other parameters on the catalytic performance were investigated. The long chain 2-(N,N-dimethyldodecylammonium) acetic acid bromide ([(CH2COOH)DMDA]Br) showed high catalytic activity and good reusability. This protocol was expanded to various epoxides, which gave the corresponding cyclic carbonates in good yields. The acidity of the catalyst influenced its catalytic activity. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.