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Application of Phosphine-Phosphite Ligands in the Iridium Catalyzed Enantioselective Hydrogenation of 2-Methylquinoline

 

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Opened Access Application of Phosphine-Phosphite Ligands in the Iridium Catalyzed Enantioselective Hydrogenation of 2-Methylquinoline
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Autor: Rubio Moreno, Miguel
Pizzano Mancera, Antonio
Departamento: Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 2010-10-29
Tipo de documento: Artículo
Resumen: The hydrogenation of 2-methylquinoline with Ir catalysts based on chiral phosphine-phosphites has been investigated. It has been observed that the reaction is very sensitive to the nature of the ligand. Optimization of the catalyst, allowed by the highly modular structure of these phosphine-phosphites, has improved the enantioselectivity of the reaction up to 73% ee. The influence of additives in this reaction has also been investigated. Contrary to the beneficial influence observed in related catalytic systems, iodine has a deleterious effect in the present case. Otherwise, aryl phosphoric acids produce a positive impact on catalyst activity without a decrease on enantioselectivity.
Tamaño: 121.3Kb
Formato: PDF

URI: http://hdl.handle.net/11441/68070

DOI: 10.3390/molecules15117732

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