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Crosslinked Resin-Supported Bifunctional Organocatalyst for Conversion of CO2 into Cyclic Carbonates.
ChemSusChem. 2020 Jul 14 [Online ahead of print]C

Abstract

The development of solvent-free, metal-free, recyclable organic catalysts is required for the current chemical fixation of carbon dioxide converted into cyclic carbonates. With the goal of reducing the cost, time, and energy consumption for the coupling reaction of CO2 and epoxides, a series of highly active heterogeneous catalysts, based on a thiourea and quaternary ammonium salt system, are synthesized by using a thiol-ene click reaction under ultraviolet light. Benefitting from synergistic interactions of the electrophilic center (thiourea) and the nucleophilic site (ammonium bromide), the catalysts exhibit excellent catalytic selectivity (99 %) for the cycloaddition of carbon dioxide with a diverse range of epoxides under mild conditions (1.2 MPa, 100 °C). Moreover, the catalyst can be easily recycled by facile filtration and reused for 5 times without noticeable loss of activity and selectivity. This work provides a potential heterogeneous catalyst for the conversion of carbon dioxide into high value-added chemicals with the combined advantages of low cost, easy recovery, and satisfactory catalytic properties.

Authors+Show Affiliations

MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 310036, P. R. China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 310036, P. R. China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32662576

Citation

Dong, Tongfeng, et al. "Crosslinked Resin-Supported Bifunctional Organocatalyst for Conversion of CO2 Into Cyclic Carbonates." ChemSusChem, 2020.
Dong T, Zheng YJ, Yang GW, et al. Crosslinked Resin-Supported Bifunctional Organocatalyst for Conversion of CO2 into Cyclic Carbonates. ChemSusChem. 2020.
Dong, T., Zheng, Y. J., Yang, G. W., Zhang, Y. Y., Li, B., & Wu, G. P. (2020). Crosslinked Resin-Supported Bifunctional Organocatalyst for Conversion of CO2 into Cyclic Carbonates. ChemSusChem. https://doi.org/10.1002/cssc.202001117
Dong T, et al. Crosslinked Resin-Supported Bifunctional Organocatalyst for Conversion of CO2 Into Cyclic Carbonates. ChemSusChem. 2020 Jul 14; PubMed PMID: 32662576.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Crosslinked Resin-Supported Bifunctional Organocatalyst for Conversion of CO2 into Cyclic Carbonates. AU - Dong,Tongfeng, AU - Zheng,Yu-Jia, AU - Yang,Guan-Wen, AU - Zhang,Yao-Yao, AU - Li,Bo, AU - Wu,Guang-Peng, Y1 - 2020/07/14/ PY - 2020/04/30/received PY - 2020/7/15/pubmed PY - 2020/7/15/medline PY - 2020/7/15/entrez KW - carbon dioxide KW - click reaction KW - cyclic carbonates KW - heterogeneous catalysis KW - organocatalysis JF - ChemSusChem JO - ChemSusChem N2 - The development of solvent-free, metal-free, recyclable organic catalysts is required for the current chemical fixation of carbon dioxide converted into cyclic carbonates. With the goal of reducing the cost, time, and energy consumption for the coupling reaction of CO2 and epoxides, a series of highly active heterogeneous catalysts, based on a thiourea and quaternary ammonium salt system, are synthesized by using a thiol-ene click reaction under ultraviolet light. Benefitting from synergistic interactions of the electrophilic center (thiourea) and the nucleophilic site (ammonium bromide), the catalysts exhibit excellent catalytic selectivity (99 %) for the cycloaddition of carbon dioxide with a diverse range of epoxides under mild conditions (1.2 MPa, 100 °C). Moreover, the catalyst can be easily recycled by facile filtration and reused for 5 times without noticeable loss of activity and selectivity. This work provides a potential heterogeneous catalyst for the conversion of carbon dioxide into high value-added chemicals with the combined advantages of low cost, easy recovery, and satisfactory catalytic properties. SN - 1864-564X UR - https://www.unboundmedicine.com/medline/citation/32662576/Crosslinked_Resin_Supported_Bifunctional_Organocatalyst_for_Conversion_of_CO2_into_Cyclic_Carbonates_ L2 - https://doi.org/10.1002/cssc.202001117 DB - PRIME DP - Unbound Medicine ER -
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