Multicomponent Reactions Promoted by Ecocatalyst from Metal Hyperaccumulating Plant <i>Pluchea sagittalis</i>
Leonardo H. R. Alponti,
Monize Picinini,
Ernesto A. Urquieta-Gonzalez,
Caroline S. da Silva,
Simone Y. S. Silva,
Sebastião C. Silva,
Marilene N. de Oliveira,
Juliana Viera,
Maria Fatima das G. F. da Silva,
Arlene G. Corrêa
Affiliations
Leonardo H. R. Alponti
Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Monize Picinini
Department of Chemical Engineering, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Ernesto A. Urquieta-Gonzalez
Department of Chemical Engineering, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Caroline S. da Silva
Group for Applied Instrumental Analysis, Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Simone Y. S. Silva
Department of Chemistry, Federal University of South and Southeast of Pará, Marabá 68507-590, PA, Brazil
Sebastião C. Silva
Department of Chemistry, Federal University of South and Southeast of Pará, Marabá 68507-590, PA, Brazil
Marilene N. de Oliveira
Department of Chemistry, Federal University of South and Southeast of Pará, Marabá 68507-590, PA, Brazil
Juliana Viera
Group for Applied Instrumental Analysis, Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Maria Fatima das G. F. da Silva
Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Arlene G. Corrêa
Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
Phytoremediation has been considered a sustainable environmental technology for heavy metals decontamination. In this work, we evaluated the metal contents by inductively coupled plasma optical emission spectrometry (ICP-OES) of three plant species collected in a mine in the Brazilian Amazonia area. Based on this analysis, Pluchea sagitallis leaves were selected to prepare metallic ecocatalysts. The leaf ashes and the obtained ecocatalysts were characterized by ICP-OES, X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2-physisorption measurements. Moreover, they were evaluated in the Biginelli and Hantzsch multicomponent reactions, furnishing the corresponding 3,4-dihydropyrimidin-2-(1H)-ones and 1,4-dihydropyridines with good to excellent yields. The best ecocatalyst was easily recovered and recycled in up to six reactions without a significant decrease in its performance.
