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El acoplamiento Suzuki-Miyaura catalizado por hierro de haluros de alquilo catalizado por hierro

Takuji Hatakeyama¹, Toru Hashimoto, Yoshiyuki Kondo

¹International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.

Journal of the American Chemical Society

|August 5, 2010

Resumen

Los nuevos catalizadores de hierro permiten el acoplamiento eficiente de arilboratos de litio con haluros de alquilo, produciendo productos valiosos. Este método demuestra una excelente tolerancia del grupo funcional para diversas aplicaciones de síntesis orgánica.

Área de la Ciencia:

Química orgánica es la química orgánica.
Química organometálica Química orgánica de los metales.

Sus antecedentes:

Las reacciones de acoplamiento cruzado son fundamentales en la síntesis orgánica.
El desarrollo de sistemas catalíticos eficientes para la formación de enlaces C-C es crucial.

Objetivo del estudio:

Desarrollar un nuevo sistema catalítico para el acoplamiento de arilboratos de litio con haluros de alquilo.
Para lograr altos rendimientos y tolerancia de grupo funcional en la reacción de acoplamiento.

Principales métodos:

Utilizando nuevos complejos de hierro (II) cloruro-difosfina como catalizadores.
Empleando el bromuro de magnesio como co-catalizador.
Reaccionan los arilboratos de litio con haluros de alquilo primarios y secundarios.

Principales resultados:

Logrado buenos a excelentes rendimientos de los productos de acoplamiento.
Se ha demostrado una alta compatibilidad del grupo funcional con varios sustituyentes reactivos (alcoxicarbonilo, ciano, carbonilo).

Conclusiones:

El sistema catalizado por hierro desarrollado proporciona una ruta eficiente para la síntesis de productos acoplados.
El método es robusto y aplicable a moléculas complejas con grupos funcionales sensibles.

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