Gold nanoparticle-catalysed functionalization of carbon-hydrogen bonds by carbene transfer reactions.
Dalton Trans
; 51(13): 5250-5256, 2022 Mar 29.
Article
em En
| MEDLINE
| ID: mdl-35285846
ABSTRACT
Gold nanoparticles stabilized by NHC ligands and supported onto reduced graphene oxide (rGO) catalyse the functionalization of cyclohexane and benzene C-H bonds upon insertion of carbene CHCO2Et (from N2îCHCO2Et) groups. This is the first example in which such Csp3-H or Csp2-H bonds are functionalized with this strategy with nanoparticulated gold. This Au-NP@rGO material shows an exceptional activity, providing TON values 5-10 times higher than those already reported for molecular gold catalysts. Recyclability is also effective, reaching an accumulated TON value of 1400 after six consecutive uses.
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MEDLINE
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En
Ano de publicação:
2022
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Article