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La aminación intermolecular C-H catalizada por Pd con las alquilaminas
Eun Jeong Yoo1, Sandy Ma, Tian-Sheng Mei
1Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Journal of the American Chemical Society
|April 28, 2011
Resumen
Este estudio presenta un nuevo método catalítico para la síntesis de arylalquilaminas. Utiliza catalizadores de paladio para la aminación C-H, ofreciendo una ruta directa desde los ácidos benzoicos a valiosos productos de aminas.
Área de la Ciencia:
- Química orgánica es la química orgánica.
- La catálisis es la catálisis.
- Metodología sintética de la metodología sintética.
Sus antecedentes:
- La aminación C-H es una transformación crucial en la síntesis orgánica.
- El desarrollo de sistemas catalíticos eficientes para la síntesis de aminas sigue siendo un área de investigación activa.
- La funcionalización directa de los enlaces C-H ofrece vías sintéticas de economía atómica.
Objetivo del estudio:
- Para desarrollar una nueva aminación catalítica C-H de N-aril benzamidas.
- Para explorar el uso de O-benzoil hidroxilaminas como agentes aminantes.
- Establecer un procedimiento único para la síntesis de aminas arilalquilo secundarias y terciarias.
Principales métodos:
- El paladio (II) y el paladio (0) catalizaban las reacciones de aminación C-H.
- Utilizando las hidroxilaminas O-benzoil como reactivos clave.
- Un procedimiento de una sola olla que implica la generación in situ de hidroxilaminas O-benzoil a partir de aminas secundarias y peróxido de benzoilo.
Principales resultados:
- Se logró una exitosa aminación C-H de las N-arilbenzamidas utilizando catalizadores Pd.
- Se desarrolló un método de una sola olla utilizando aminas secundarias y peróxido de benzoilo.
- La reacción proporciona una síntesis convergente de aminas arilalquilo terciarias y secundarias.
Conclusiones:
- Se ha establecido una nueva desconexión catalítica para la síntesis de arylalquilamina.
- La metodología desarrollada ofrece una ruta versátil de los ácidos benzoicos a los valiosos productos de aminas.
- Este trabajo amplía el conjunto de herramientas para la construcción de estructuras de aminas complejas.
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