Acidic Ionic Liquids as Efficient and Environmentally Benign Medium for the Synthesis of 2-Phenylbenzimidazole
Acidic Ionic Liquids as Efficient and Environmentally Benign Medium for the Synthesis of 2-Phenylbenzimidazole
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酸性离子液体作为高效且环保的介质用于合成 2-苯基苯并咪唑
DOI：
10.1002/cjoc.201190197
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发表时间：
2011-05
影响因子：
5.4
通讯作者：
Dai Liyi
中科院分区：
文献类型：
--
作者：
Gong Xinxin;Wang Yuanyuan;Wang Yu;Dai Liyi
以一系列酸性离子液体为催化剂，在无溶剂条件下合成了2-取代苯并咪唑，收率高。结果表明，so3h功能化的离子液体比其他酸性离子液体具有更高的催化活性。考察了离子液体用量、反应物配比等条件对反应的影响。用哈米特法测定了这些离子液体的酸度顺序，发现结果与合成反应中观察到的催化活性有关。此外，利用DFT方法对反应机理进行了模拟。
2-Substituted benzimidazoles have been synthesized in excellent yields under solvent-free conditions using a series of acidic ionic liquids as catalysts. The results indicate that SO3H-functionalized ionic liquids show higher catalytic activities than other acidic ionic liquids. The effects of reaction conditions such as the amounts of ionic liquids, the ratio of reactants were investigated. A Hammett method was used to determine the acidity order of these ionic liquids and the results were found to be relevant to the catalytic activities observed in the synthesis reaction. Besides, the reaction mechanism was stimulated using DFT method.
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影响因子：
1.8
作者：
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通讯作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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