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Descripción

Cationic pyridiniophosphine ligands have been synthetized in an attempt to develop a deep eutectic solvents (DESs) compatible catalytic systems. These ligands, in combination with PdCl2, have been successfully applied to different palladium-catalyzed cross coupling reactions, such as Suzuki–Miyaura, Sonogashira, or Heck couplings. While traditional palladium ligands in DES medium failed to reproduce the results obtained in VOC solvents, these cationic phosphines improved the catalytic activity of palladium as no other traditional ligand could in such a polar medium. In addition, the recyclability of these processes was studied, allowing us to reuse both, catalyst and solvent up to 5 times in Suzuki and Sonogashira reactions without a significant drop in the catalytic activity. Regarding the structure of the Pd catalysts, titration, NMR, and DFT studies have clearly demonstrated the coordination properties of the DES-compatible cationic phosphine ligands.

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RUA  

Autor(es)

Marset, Xavier -  Khoshnood, Abbas -  Sotorríos, Lia -  Gómez Bengoa, Enrique -  Alonso, Diego A. -  Ramón, Diego J. - 

Id.: 69788510

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveCross -  coupling - 

Tipo de recurso: info:eu-repo/semantics/article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://dx.doi.org/10.1002/cctc.201601544

Fecha de contribución: 28-abr-2018

Contacto:

Localización:
* ChemCatChem. 2017, 9(7): 1269-1275. doi:10.1002/cctc.201601544
* 1867-3880 (Print)
* 1867-3899 (Online)
* 10.1002/cctc.201601544

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