Lithium Chloride-Imidazolium Chloride Melts for the CouplingReactions of Propylene Oxide and CO2

Bulletin of the Korean chemical society

Hoon Sik Kim¹  Je Seung Lee¹  Ly Vinh Nguyen¹  Hyunjoo Lee¹  Bora Lee¹  Min-Jung Kang¹  Dinh Quan Nguyen¹  Seol Ryu¹ 

关键词: Ionic liquids;    Lithium chloride;    Lithium dichloride;    Carbon dioxide;    Cyclic carbonates;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A series of lithium chloride-imidazolium chloride (LiCl-[imidazolium]Cl) melts were prepared and their catalytic activities were evaluated for the coupling reactions of propylene oxide and CO2. At the constant mole of LiCl, the catalytic activities of LiCl-[imidazolium]Cl melts increased with increasing molar ratio of [imidazolium]Cl/LiCl up to 2, but thereafter decreased rapidly. The variation of alkyl groups on the imidazolium ring showed a negligible effect on the catalytic activity, but the number of alkyl groups present on the imidazolium cation exerts a pronounced effect. Catalysis and electrospray ionization tandem mass spectral analysis results of LiCl-[imidazolium]Cl melts imply that the activity of the melt is strongly related to the amount of LiCl2- generated from the melt.

【 授权许可】

Unknown