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• W4386068994 abstract "Sustainable chemical research emphasizes chitosan‐based catalysts and the need to explore the direct utilization of waste shrimp shells, whereas the use of ethanol as a hydrogen source in transfer hydrogenation is less explored due to its unfavorable redox potential, higher energy barriers, generation of reactive intermediates, and catalyst poising via metal carbonyl species or decarbonylation. Herein, we disclosed an efficient synthetic approach, conducted at ambient temperature, for surface functionalization of waste shrimp shells with 3‐(3,5‐dimethyl‐1H‐pyrazol‐1‐yl)‐1,2,4,5‐tetrazine ( DMPZ‐Tz ) via nucleophilic substitution using 3,6‐bis(3,5‐dimethyl‐1H‐pyrazol‐1‐yl)‐1,2,4,5‐tetrazine ( BDMPZ‐Tz ). This method results in a color change and a 75% increase in surface nitrogen content, eliminating the need for multiple syntheses and harsh reaction conditions. We utilized the strong coordination property between DMPZ‐Tz and [Ru( p ‐cym)Cl 2 ] 2 /RuCl 3 .3H 2 O to develop ruthenium‐embedded transfer hydrogenation catalysts supported on shrimp shells. These catalysts were employed for the selective transfer hydrogenation of unsaturated carbonyl/aldehydes to saturated carbonyl/alcohols, utilizing ethanol as the hydrogen source and potassium carbonate as the base. The performance, selectivity, and reusability of the catalyst were thoroughly assessed through spectroscopic studies, in‐situ monitoring of the reaction progress, initial rate kinetics, and control experiments. The obtained results strongly indicated that the anchoring of DMPZ‐Tz played a crucial role in achieving superior performance compared with catalysts synthesized without it or utilizing its homogeneous counterparts. The catalyst exhibits efficient reactivity, selectivity, and broad substrate scope." @default.
• W4386068994 created "2023-08-23" @default.
• W4386068994 creator A5013402200 @default.
• W4386068994 creator A5036417413 @default.
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• W4386068994 creator A5089765698 @default.
• W4386068994 date "2023-08-22" @default.
• W4386068994 modified "2023-09-23" @default.
• W4386068994 title "Sustainable and selective transfer hydrogenation using waste shrimp shell‐based tetrazene‐Ru (II) <i>para</i>‐cymene catalyst with ethanol as a hydrogen source" @default.
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• W4386068994 doi "https://doi.org/10.1002/aoc.7221" @default.
• W4386068994 hasPublicationYear "2023" @default.
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