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Novel and sustainable carboxylation of terminal alkynes and CO2 to alkynyl carboxylic acids using triazolium ionic liquid-modified PMO-supported transition metal acetylacetonate as effective cooperative catalysts

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Abstract

Efficient and sustainable chemical fixation of CO2 into value-added chemicals is one of the most promising objectives in environmental chemistry. In this work, transition metal acetylacetonate immobilized onto triazolium ionic liquid-modified periodic mesoporous organosilica PMO-IL-M(x) was successfully prepared and investigated as an effective and heterogeneous catalyst in the direct carboxylation of terminal alkynes and CO2 to the desired alkynyl carboxylic acids. It was found that the catalyst PMO-IL-Sn(0.3) exhibited extraordinary catalytic performance in terms of excellent activity, stability, productivity, and excellent yields under mild reaction conditions. Moreover, the catalyst PMO-IL-Sn(0.3) could be easily recovered and reused at least six times without considerable loss in catalytic activity. This work provides a sustainable and efficient synergistic strategy for the chemical fixation of carbon dioxide into valuable alkynyl carboxylic acids.

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Funding

This work was financially supported by the Research Foundation of Yichang Science and Technology Bureau (A21-3–009), 111 Project (D20015), the Research Fund for Excellent Dissertation of China Three Gorges University (2021SSPY049), and the Natural Science Foundation of Jiangxi Province of China (No. 20202BABL203023).

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Jing Rui Li: Investigation, data curation, formal analysis, and writing-original draft; Chen Chen: formal analysis and investigation; Xiao Bing Liu: funding acquisition, resources, and editing; Yu-Lin Hu: conceptualization, methodology, resources, supervision, writing-review and editing, and funding acquisition.

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Correspondence to Yu-Lin Hu.

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The authors declare no competing interests.

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Responsible Editor: George Z. Kyzas

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Li, JR., Chen, C., Liu, XB. et al. Novel and sustainable carboxylation of terminal alkynes and CO2 to alkynyl carboxylic acids using triazolium ionic liquid-modified PMO-supported transition metal acetylacetonate as effective cooperative catalysts. Environ Sci Pollut Res 29, 83247–83261 (2022). https://doi.org/10.1007/s11356-022-21630-y

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  • DOI: https://doi.org/10.1007/s11356-022-21630-y

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