A series of monodentate and bidentate chiral phosphorus based ligands including diphosphites and diphosphonites derived from carbohydrates were tested in the asymmetric Suzuki coupling of aryl halides with 2-substituted 1-naphthylboronic acids. Good activities and selectivities were achieved, although modest ee's were obtained (up to 37%). The X-ray structure of PtCl2(12) bearing the C2-symmetry diphosphite ligand 12 derived from carbohydrate, is also reported.
Titolo: | Pd-catalysed asymmetric Suzuki–Miyaura reactions using chiral mono- and bidentate phosphorus ligands | |
Autori: | ||
Data di pubblicazione: | 2013 | |
Rivista: | ||
Abstract: | A series of monodentate and bidentate chiral phosphorus based ligands including diphosphites and diphosphonites derived from carbohydrates were tested in the asymmetric Suzuki coupling of aryl halides with 2-substituted 1-naphthylboronic acids. Good activities and selectivities were achieved, although modest ee's were obtained (up to 37%). The X-ray structure of PtCl2(12) bearing the C2-symmetry diphosphite ligand 12 derived from carbohydrate, is also reported. | |
Handle: | http://hdl.handle.net/11368/2829734 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jorganchem.2013.06.022 | |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
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