Síntese e emprego do [Pd(dmba)(NCO)(PPh3)] em processos catalíticos envolvendo a preparação de derivados da uréia e de alcoxicarbonil complexos

• Autor(a) principal: de Lucca Neto, V. A. [UNESP]
• Data de Publicação: 2006
• Outros Autores: Mauro, A. E. [UNESP], Ananias, S. R. [UNESP], Stevanato, A. [UNESP], Moro, A. C. [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.26850/1678-4618EQJ.V31.3.2006.P75-81; http://hdl.handle.net/11449/229762
• topic: Cyclometallated; Homogeneous catalysis; Reductive carbonilation

This work deals with the use of the cyclometallated compound [Pd(dmba)(NCO)(PPh3)] in homogeneous catalysis processes comprising the reaction of p-toluidine and p-nitrotoluene, giving N,N´-bis(4-methylphenyl)urea. The reaction was performed at 140 ºC, under 60 bar of CO pressure. On the other hand, alcoxicarbonyl compounds of the type [Pd(NCO)(CO2R)(PPh3)2] (R = Me or Et) were obtained from carbonilation reactions of [Pd(dmba)(NCO)(PPh3)] in alcohol like methanol and ethanol. It was also verified that the carbonilation processes investigated in this work afforded products with good yields.