Pyridine–hydrazone ligands in enantioselective palladium-catalyzed Suzuki–Miyaura cross-couplings
The geometries and coordination properties of modular pyridine–hydrazone N,N-ligands containing C-symmetric trans-2,5-diphenylpyrrolidine and trans-2,5-diphenylpiperidine as the terminal dialkylamino units have been analyzed by X-ray diffraction analysis of [PdCl(N,N)] complexes [(N,N)=pyridine hydr...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/148486 |
| Acceso en línea: | http://hdl.handle.net/10261/148486 |
| Access Level: | acceso abierto |
| Palabra clave: | N-Ligands Asymmetric catalysis Palladium, Biaryls Cross-coupling |
| Sumario: | The geometries and coordination properties of modular pyridine–hydrazone N,N-ligands containing C-symmetric trans-2,5-diphenylpyrrolidine and trans-2,5-diphenylpiperidine as the terminal dialkylamino units have been analyzed by X-ray diffraction analysis of [PdCl(N,N)] complexes [(N,N)=pyridine hydrazone ligand]. In combination with Pd(OAc)as the precatalyst, these ligands provide high enantioselectivities (up to 95:5 er) in asymmetric Suzuki–Miyaura cross couplings of 2-methoxy-1-naphthyl bromides with 1-naphthyl and 2-tolyl boronic acids. |
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