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- W3106805012 abstract "Co nanoparticles (NPs) encapsulated in N-doped carbon nanotubes (Co@NC900 ) are systematically investigated as a potential alternative to precious Pt-group catalysts for hydrogenative heterocyclization reactions. Co@NC900 can efficiently catalyze hydrogenative coupling of 2-nitroaniline to benzaldehyde for synthesis of 2-phenyl-1H-benzo[d]imidazole with >99 % yield at ambient temperature in one step. The robust Co@NC900 catalyst can be easily recovered by an external magnetic field after the reaction and readily recycled for at least six times without any evident decrease in activity. Kinetic experiments indicate that Co@NC900 -promoted hydrogenation is the rate-determining step with a total apparent activation energy of 41±1 kJ mol-1 . Theoretical investigations further reveal that Co@NC900 can activate both H2 and the nitro group of 2-nitroaniline. The observed energy barrier for H2 dissociation is only 2.70 eV in the rate-determining step, owing to the presence of confined Co NPs in Co@NC900 . Potential industrial application of the earth-abundant and non-noble transition metal catalysts is also explored for green and efficient synthesis of heterocyclic compounds." @default.
- W3106805012 created "2020-12-07" @default.
- W3106805012 creator A5001509019 @default.
- W3106805012 creator A5013779258 @default.
- W3106805012 creator A5022921645 @default.
- W3106805012 creator A5023639462 @default.
- W3106805012 date "2020-11-23" @default.
- W3106805012 modified "2023-10-11" @default.
- W3106805012 title "H <sub>2</sub> Activation with Co Nanoparticles Encapsulated in N‐Doped Carbon Nanotubes for Green Synthesis of Benzimidazoles" @default.
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- W3106805012 doi "https://doi.org/10.1002/cssc.202002344" @default.
- W3106805012 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33226188" @default.
- W3106805012 hasPublicationYear "2020" @default.
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