Pd Nanoparticles Immobilized on Graphene Oxide/Silica Nanocomposite: Efficient and Recyclable Catalysts for Cross-Coupling Reactions

Autor(es)

Oliveira, Rafael L. ^[1] ; Oliveira, Cristine S. ^[1] ; Landers, Richard ^[2] ; Correia, Carlos R. D. ^[1]

Afiliação do(s) autor(es)

^[1] Campinas Univ, Chem Inst, Caixa Postal 6154, BR-13083970 Campinas, SP - Brazil

^[2] Campinas Univ, Phys Inst, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CHEMISTRYSELECT; v. 3, n. 2, p. 535-543, JAN 17 2018.
• Citações Web of Science: 8

Resumo

Pd nanoparticles were synthesized on non-functionalized and functionalized graphene oxide with thiol and amine groups. The resulting materials were used as recyclable catalysts to study the influence of the functional groups and compare their activity and stability to non-functionalized graphene oxide and commercial catalysts in the Heck and Suzuki reactions. The catalyst based on non-functionalized GO and commercial catalysts lost their activity quickly because of particle growth (Oswald ripening). However, the presence of functional groups reduces significantly the metal particle growth producing more efficient catalysts for the Heck and the Suzuki reactions. Moreover, the synthesized catalysts were capable of catalyzing the Heck and Suzuki reactions using different substrates, achieving good activities and selectivities in all cases. (AU)

• Processo FAPESP: 14/25770-6 - Novas fronteiras em reações de acoplamento cruzado mediadas por paládio: associando catálise enantiosseletiva, ativações C-H, novos materiais e reações em fluxo visando alta eficiência e sustentabilidade em processos sintéticos
• Beneficiário: Carlos Roque Duarte Correia
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 15/07773-0 - Preparação de catalisadores de paládio suportados para a reação de heck-matsuda enantiosseletiva em fluxo contínuo
• Beneficiário: Rafael de Lima Oliveira
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado