Imidazolium‐Functionalized UiO‐66 Encapsulating Palladium Nanoparticles for Efficient Cyclization of Propargylamine and CO2 DOI

Ze‐Kun Tao,

Jie Chen, Qinggang Zhang

и другие.

Chemistry - An Asian Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Highly efficient and stable catalysts for carbon dioxide (CO2) capture conversion into value-added chemicals are critically needed. In this study, postmodification of UiO-66-MeIm with iodomethane via N-alkylation results in a roughened octahedral structure, yielding (I-)BisMe-Im-UiO-66. A series palladium nanoparticles (UiO-66-Pd-NPs) were subsequently synthesized through an ion exchange strategy Na2PdCl4, followed by chemical reduction NaBH4. Comprehensive characterization UiO-66-Pd-NPs was conducted using multiple analytical techniques, revealing PdNPs average size 6.634 ± 1.510 nm. The catalyst demonstrated exceptional efficiency the cyclization CO2 propargylamine, achieving yield 100% DMSO under mild conditions ambient pressure NaOAc as weak base. No significant deactivation catalytic performance observed after reused three times. synergistic effect imidazolium moiety facilitates activation both propargylamines, enabling formation 2-oxazolidinones.

Язык: Английский

Imidazolium‐Functionalized UiO‐66 Encapsulating Palladium Nanoparticles for Efficient Cyclization of Propargylamine and CO2 DOI

Ze‐Kun Tao,

Jie Chen, Qinggang Zhang

и другие.

Chemistry - An Asian Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Highly efficient and stable catalysts for carbon dioxide (CO2) capture conversion into value-added chemicals are critically needed. In this study, postmodification of UiO-66-MeIm with iodomethane via N-alkylation results in a roughened octahedral structure, yielding (I-)BisMe-Im-UiO-66. A series palladium nanoparticles (UiO-66-Pd-NPs) were subsequently synthesized through an ion exchange strategy Na2PdCl4, followed by chemical reduction NaBH4. Comprehensive characterization UiO-66-Pd-NPs was conducted using multiple analytical techniques, revealing PdNPs average size 6.634 ± 1.510 nm. The catalyst demonstrated exceptional efficiency the cyclization CO2 propargylamine, achieving yield 100% DMSO under mild conditions ambient pressure NaOAc as weak base. No significant deactivation catalytic performance observed after reused three times. synergistic effect imidazolium moiety facilitates activation both propargylamines, enabling formation 2-oxazolidinones.

Язык: Английский

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