Gold nanoparticle-catalysed functionalization of carbon-hydrogen bonds by carbene transfer reactions

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 N2=CHCO2Et) groups. This is the first example in which such Csp3 or Csp2 bonds are functionalized w...

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Bibliographic Details
Authors: Martínez Laguna, Jonathan, Mollar Cuni, Andres, Ventura Espinosa, David, Martín, Santiago, Caballero Bevia, Ana, Mata, Jose A., Pérez Romero, Pedro José
Format: article
Publication Date:2022
Country:España
Institution:Universidad de Huelva (UHU)
Repository:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Language:English
OAI Identifier:oai:ariasmontano.uhu.es:10272/21357
Online Access:https://hdl.handle.net/10272/21357
Access Level:Open access
Keyword:23 Química
Description
Summary: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 N2=CHCO2Et) groups. This is the first example in which such Csp3 or Csp2 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 accumulate TON value of 1400 after six consecutive uses