Highly efficient synthesis of alkylidene cyclic carbonates from low concentration CO2 using hydroxyl and azolate dual functionalized ionic liquids

被引:40
作者
Shi, Guiling [1 ]
Zhai, Ran [1 ]
Li, Haoran [1 ]
Wang, Congmin [1 ]
机构
[1] Zhejiang Univ, Dept Chem, State Key Lab Chem Engn, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
PROPARGYL ALCOHOLS; CARBOXYLATIVE CYCLIZATION; AMBIENT CONDITIONS; CHEMICAL FIXATION; CATALYTIC-SYSTEM; SO2; ABSORPTION; FLUE-GAS; DIOXIDE; CAPTURE; TRANSFORMATION;
D O I
10.1039/d0gc03510f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A highly efficient catalytic system was developed for the reaction between CO2 and propargylic alcohols for alkylidene cyclic carbonates. Ionic liquids (ILs) with different anions and cations were designed as cocatalysts, in order to find out the effect of the cation and the anion on this reaction. The results indicated that the effect of the cation was significant, especially the hydroxyl group on the cation played an important role due to the presence of a hydrogen bond. It was also found that the basicity of the anion was important for its catalytic activity, where the anion with moderate basicity gave the best activity. Moreover, this hydroxyl and azolate dual functionalized catalytic system showed excellent reusability and generality. It is worth mentioning that at a low concentration of CO2, this dual functionalized catalytic system showed excellent catalytic activity even in a gram-scale reaction, indicating its potential in carbon capture and utilization processes.
引用
收藏
页码:592 / 596
页数:5
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