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Bifunctional phase-transfer catalysts for fixation of CO2 with epoxides under ambient pressure

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Abstract

A series of bifunctional phase-transfer catalysts with a quaternary onium center and a hydrogen-bonding donor group were prepared for the fixation of CO2 with commercially available epoxides under mild conditions by using a CO2 balloon (1 atm). In the presence of 2.5 mol% of achiral bifunctional phase-transfer catalysts, cyclic carbonates were obtained in good to excellent yields (up to 95%). Additionally, optical carbonates and epoxides were obtained through the kinetic resolution of rac-epoxides by 1 mol% of chiral bifunctional phase-transfer catalysts with low enantioselectivities. These catalysts featured a simple synthetic route, good modularity and high efficiency.

Graphical abstract: Bifunctional phase-transfer catalysts for fixation of CO2 with epoxides under ambient pressure

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Publication details

The article was received on 20 Jun 2019, accepted on 06 Jul 2019 and first published on 09 Jul 2019


Article type: Paper
DOI: 10.1039/C9GC02058F
Green Chem., 2019, Advance Article

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    Bifunctional phase-transfer catalysts for fixation of CO2 with epoxides under ambient pressure

    Y. Li, D. Cui, J. Zhu, P. Huang, Z. Tian, Y. Jia and P. Wang, Green Chem., 2019, Advance Article , DOI: 10.1039/C9GC02058F

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