دورية أكاديمية
Internal 2D networking of silver bromide with a bidentate N-heterocyclic carbene ligand enables the formation of an inherently heterogeneous reusable catalyst for multicomponent A3 coupling.
| العنوان: | Internal 2D networking of silver bromide with a bidentate N-heterocyclic carbene ligand enables the formation of an inherently heterogeneous reusable catalyst for multicomponent A3 coupling. |
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| المؤلفون: | Nallappan, Sundaravelu, Kucherak, Oleksandr, Kiss, Anita, Lapinskaite, Ringaile, Císařová, Ivana, Rycek, Lukas |
| المصدر: | New Journal of Chemistry; 7/28/2024, Vol. 48 Issue 28, p12800-12806, 7p |
| مصطلحات موضوعية: | HETEROGENEOUS catalysts, SILVER bromide, SILVER catalysts, COUPLING reactions (Chemistry), INORGANIC polymers, CARBENE synthesis, CROSSLINKED polymers, ORGANIC solvents |
| مستخلص: | We report the synthesis of a heterogenous silver catalyst stabilized by bidentate N-heterocyclic carbene ligands. The heterogeneous nature of the catalyst is inherently derived from the unprecedented internal structural features observed for the catalyst. X-ray studies show that the silver complex forms a two-dimensional cross-linked system, where one dimension of the network is formed by inorganic polymer strings and the second direction is formed by the interconnection of these inorganic strings with NHC bidentate ligands. This organized internal arrangement renders the complex insoluble in many common organic solvents and enables its utilization as a reusable heterogeneous catalyst in multicomponent A3 coupling reactions. Notably, propargylic amines were obtained with yields of up to 97%, and the catalyst demonstrated reusability for six cycles. These results can facilitate the further development of heterogeneous NHC catalysts. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: | Complementary Index |
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