Synthesis of Cyclic Carbonates from CO2 and Epoxide Catalyzed by Co, Ni and Cu Complexes in Ionic Liquids
Autor
Honores J.
Quezada D.
Chacón G.
Martínez-Ferraté O.
Isaacs M.
Resumen
Abstract: A series of first row metal complexes (Co, Ni and Cu) containing commercial nitrogen ligands were synthetized and used as catalyst in the cycloaddition of CO2 to epoxides. The reaction was carried out in ionic liquids based on 1-n-butyl-3-methylimidazolium as solvents. Best catalytic results were achieved with Co catalysts in 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMIm.BF4). Under optimized reaction conditions cyclic carbonates were selectively obtained with good to excellent yields, presenting a reliable alternative to synthetize the product using low cost and abundant catalytic system containing a common ligand as ethylenediamine. Finally, macrocycle effects where studied in each case comparing the conversion rates obtained by using ethylenediamine and 1,4,8,11-tetraazacyclotetradecane. Graphical Abstract: [Figure not available: see fulltext.]. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
Colecciones
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Article
Novel alkylimidazolium ionic liquids as an antibacterial alternative to pathogens of the skin and soft tissue infections (2020)
Doria O.F.; Castro R.; Gutierrez M.; Valenzuela D.G.; Santos L.; Ramirez D.; Guzman L. (MDPI AG, 2018) -
Article
Zinc Stannate as anode and Pyrrolidinium-Based Room Temperature Ionic Liquid as electrolyte for Lithium-ion Cells (2021)
Quezada, D.; Honores, Jessica; Ruíz-León, Domingo (Electrochemical Science Group, 2021-02)With the aim to design safer batteries, pyrrolidinium-based room temperature ionic liquids (RTIL) have been used as electrolytes in Li-ion batteries using zinc stannate as the anodic material. The lithium diffusion ... -
Article
Exploring the use of CO2-expanded ionic liquids as solvents in microextraction of 3,3′,4,4′-tetrachlorobiphenyl from aqueous solutions (2024)
Villarroel, Eduardo; Merlet, Gastón; Toledo-Neira, Carla; Sepúlveda, Luisa; Romero, Julio; Brouwer, Thomas; Schuur, Boelo; Quijada-Maldonado, Esteban (Elsevier B.V., 2024)This paper explores the effect of adding supercritical carbon dioxide (scCO2) to Ionic Liquids (ILs) for the microextraction of very diluted pollutants from aqueous matrices. The proposed system uses an IL, trihexyl-tetr ...