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Título: | Pyridine–hydrazone ligands in enantioselective palladium-catalyzed Suzuki–Miyaura cross-couplings |
Autor: | Álvarez-Casao, Yolanda; Estepa, Beatriz; Monge, David; Ros, Abel CSIC ORCID CVN ; Iglesias-Sigüenza, Javier; Álvarez, Eleuterio CSIC ORCID ; Fernández, Rosario; Lassaletta, José M. CSIC ORCID | Palabras clave: | N-Ligands Asymmetric catalysis Palladium, Biaryls Cross-coupling |
Fecha de publicación: | 2016 | Editor: | Elsevier | Citación: | Tetrahedron 72: 5184- 5190 (2016) | Resumen: | 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. | URI: | http://hdl.handle.net/10261/148486 | DOI: | 10.1016/j.tet.2015.12.053 | Identificadores: | doi: 10.1016/j.tet.2015.12.053 issn: 1464-5416 |
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TET-D-15-01707 Revised.pdf | 2,01 MB | Adobe PDF | Visualizar/Abrir |
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