Imidazolium ionic liquids/organic bases: Efficient intermolecular synergistic catalysts for the cycloaddition of CO2 and epoxides under atmospheric pressure

Liangzheng Ji; Zhoujie Luo; Yongya Zhang; Rong Wang; Yayan Ji; Fei Xia; Guohua Gao

doi:10.1016/j.mcat.2017.12.026

Imidazolium ionic liquids/organic bases: Efficient intermolecular synergistic catalysts for the cycloaddition of CO₂ and epoxides under atmospheric pressure

Liangzheng Ji, Zhoujie Luo, Yongya Zhang, Rong Wang, Yayan Ji, Fei Xia, Guohua Gao

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

An intermolecular synergistic catalytic system consisting of ionic liquids and organic bases is developed for the cycloaddition of CO₂ and epoxides. This strategy realizes the cycloaddition takes place under atmospheric pressure of CO₂ with high activity. NMR, FT-IR spectroscopy and DFT calculations are applied to investigate the synergistic effect and reaction mechanism on molecules. Plausible ionic liquids/secondary amines and ionic liquids/tertiary amines catalyzed mechanisms are proposed and further confirmed by more detailed DFT calculations including reaction pathways and energy profiles, respectively. The procedure reported here represents a facile, cost-effective and energy-efficient route for chemical fixation of CO₂ into 5-membered cyclic carbonates.

Original language	English
Pages (from-to)	124-130
Number of pages	7
Journal	Molecular Catalysis
Volume	446
DOIs	https://doi.org/10.1016/j.mcat.2017.12.026
State	Published - Feb 2018

Keywords

Carbon dioxide
Cycloaddition
Mechanism study
Synergistic catalysis

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10.1016/j.mcat.2017.12.026

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title = "Imidazolium ionic liquids/organic bases: Efficient intermolecular synergistic catalysts for the cycloaddition of CO2 and epoxides under atmospheric pressure",

abstract = "An intermolecular synergistic catalytic system consisting of ionic liquids and organic bases is developed for the cycloaddition of CO2 and epoxides. This strategy realizes the cycloaddition takes place under atmospheric pressure of CO2 with high activity. NMR, FT-IR spectroscopy and DFT calculations are applied to investigate the synergistic effect and reaction mechanism on molecules. Plausible ionic liquids/secondary amines and ionic liquids/tertiary amines catalyzed mechanisms are proposed and further confirmed by more detailed DFT calculations including reaction pathways and energy profiles, respectively. The procedure reported here represents a facile, cost-effective and energy-efficient route for chemical fixation of CO2 into 5-membered cyclic carbonates.",

keywords = "Carbon dioxide, Cycloaddition, Mechanism study, Synergistic catalysis",

author = "Liangzheng Ji and Zhoujie Luo and Yongya Zhang and Rong Wang and Yayan Ji and Fei Xia and Guohua Gao",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

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doi = "10.1016/j.mcat.2017.12.026",

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T1 - Imidazolium ionic liquids/organic bases

T2 - Efficient intermolecular synergistic catalysts for the cycloaddition of CO2 and epoxides under atmospheric pressure

AU - Ji, Liangzheng

AU - Luo, Zhoujie

AU - Zhang, Yongya

AU - Wang, Rong

AU - Ji, Yayan

AU - Xia, Fei

AU - Gao, Guohua

PY - 2018/2

Y1 - 2018/2

N2 - An intermolecular synergistic catalytic system consisting of ionic liquids and organic bases is developed for the cycloaddition of CO2 and epoxides. This strategy realizes the cycloaddition takes place under atmospheric pressure of CO2 with high activity. NMR, FT-IR spectroscopy and DFT calculations are applied to investigate the synergistic effect and reaction mechanism on molecules. Plausible ionic liquids/secondary amines and ionic liquids/tertiary amines catalyzed mechanisms are proposed and further confirmed by more detailed DFT calculations including reaction pathways and energy profiles, respectively. The procedure reported here represents a facile, cost-effective and energy-efficient route for chemical fixation of CO2 into 5-membered cyclic carbonates.

AB - An intermolecular synergistic catalytic system consisting of ionic liquids and organic bases is developed for the cycloaddition of CO2 and epoxides. This strategy realizes the cycloaddition takes place under atmospheric pressure of CO2 with high activity. NMR, FT-IR spectroscopy and DFT calculations are applied to investigate the synergistic effect and reaction mechanism on molecules. Plausible ionic liquids/secondary amines and ionic liquids/tertiary amines catalyzed mechanisms are proposed and further confirmed by more detailed DFT calculations including reaction pathways and energy profiles, respectively. The procedure reported here represents a facile, cost-effective and energy-efficient route for chemical fixation of CO2 into 5-membered cyclic carbonates.

KW - Carbon dioxide

KW - Cycloaddition

KW - Mechanism study

KW - Synergistic catalysis

UR - https://www.scopus.com/pages/publications/85041924840

U2 - 10.1016/j.mcat.2017.12.026

DO - 10.1016/j.mcat.2017.12.026

M3 - 文章

AN - SCOPUS:85041924840

SN - 2468-8231

VL - 446

SP - 124

EP - 130

JO - Molecular Catalysis

JF - Molecular Catalysis

ER -

Imidazolium ionic liquids/organic bases: Efficient intermolecular synergistic catalysts for the cycloaddition of CO₂ and epoxides under atmospheric pressure

Abstract

Keywords

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