Synthesis of Asymmetrical Organic Carbonates using CO2 as a Feedstock in AgCl/Ionic Liquid System at Ambient Conditions
Synthesis of Asymmetrical Organic Carbonates using CO2 as a Feedstock in AgCl/Ionic Liquid System at Ambient Conditions
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常温条件下 AgCl/离子液体体系中以 CO2 为原料合成不对称有机碳酸酯
DOI：
10.1002/cssc.201601773
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发表时间：
2017
期刊：
影响因子：
8.4
通讯作者：
Han Buxing
中科院分区：
文献类型：
--
作者：
Hu Jiayin;Ma Jun;Lu Lu;Qian Qingli;Zhang Zhaofu;Xie Chao;Han Buxing
从可再生且廉价的二氧化碳合成不对称有机碳酸盐具有重要意义，但也具有挑战性，特别是在环境条件下。在这里，我们发现一些金属盐/离子液体催化体系对由二氧化碳、丙叉醇和伯醇合成不对称有机碳酸酯具有很高的活性。尤其是氯化银/1-丁基-3-甲基咪唑乙酸酯([BMIM][OAc])体系在常温常压下对多种底物的反应都非常有效，不对称有机碳酸酯的产率可接近100 %。该催化剂体系在不改变其催化性能的情况下，可重复使用至少5次，且易于回收和重复使用。详细的研究表明，AgCl和[Bmim][OAc]协同催化了这些反应，导致了独特的催化性能。
Synthesis of asymmetrical organic carbonates from the renewable and inexpensive CO2is of great importance but also challenging, especially at ambient conditions. Herein, we found that some metal salt/ionic liquid catalyst systems were highly active for the synthesis of asymmetrical organic carbonates from CO2, propargylic alcohols, and primary alcohols. Especially, the AgCl/1‐butyl‐3‐methylimidazolium acetate ([Bmim][OAc]) system was very efficient for the reactions of a wide range of substrates at room temperature and atmospheric pressure, and the yields of the asymmetrical organic carbonates could approach 100 %. The catalyst system could be reused at least five times without changing its catalytic performance, and could be easily recovered and reused. A detailed study indicated that AgCl and [Bmim][OAc] catalyzed the reactions cooperatively, resulting in unique catalytic performance.