Zn-containing ionic liquids bearing dialkylphosphate ligands for the coupling reactions of epoxides and CO2

Title
Zn-containing ionic liquids bearing dialkylphosphate ligands for the coupling reactions of epoxides and CO2
Authors
이진규김영진최영섭이현주이제승홍종기정은경김훈식정민석
Keywords
Carbon dioxide utilization; Cyclic carbonates; Ionic liquids; Zinc bromide; Epoxides
Issue Date
2012-01
Publisher
Applied catalysis B, Environmental
Citation
VOL 111-112, 621-627
Abstract
Zn-containing room temperature ionic liquids (Zn-RTILs), prepared from the reactions of ZnBr2 with 1-alkyl-3-methylimidazolium dialkyphosphates ([RMIm][R2PO4]), were highly active for the coupling reactions of CO2 with epoxides, producing corresponding cyclic carbonates in high yields. FAB-mass spectral and computational results suggest that [ZnBr(R2PO4)2]− could be an active species for the coupling reaction. Decomposition of cyclic carbonates into epoxides and CO2 during the product recovery process via vacuum distillation was almost negligible even in the presence of a Zn-RTIL up to 130 ℃.
URI
http://pubs.kist.re.kr/handle/201004/41420
ISSN
0926-3373
Appears in Collections:
KIST Publication > Article
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