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Acoplamiento deshidroxilativo de alcoholes con haluros de arilo, catalizado por níquel y activado electroquímicamente

Zijian Li^1,2, Wenxuan Sun^3,2, Xianxu Wang²

¹Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.

Journal of the American Chemical Society

|February 23, 2021

Resumen

Este estudio presenta un método eficiente para crear enlaces carbono-carbono utilizando alcoholes y bromuros de arilo. La nueva electrólisis emparejada catalizada por níquel permite el acoplamiento directo, expandiendo las posibilidades sintéticas en la química orgánica.

Área de la Ciencia:

Química orgánica
Catálisis
La electroquímica

Sus antecedentes:

Los alcoholes son materiales de partida versátiles en la síntesis química.
La formación de nuevos enlaces carbono-carbono es crucial para la construcción molecular.
Los métodos existentes para la formación de enlaces C ((sp2) - C ((sp3) a menudo requieren sustratos prefuncionalizados.

Objetivo del estudio:

Desarrollar un método eficiente y directo para la construcción de enlaces C(sp2) -C(sp3).
Utilización de los alcoholes y bromuros de arilo fácilmente disponibles como socios de acoplamiento.
Para demostrar una estrategia de electrólisis emparejada catalizada por níquel.

Principales métodos:

Preparación anódica de iones de alkoxi trifenilfosfonio.
Acoplamiento reductivo catódico catalizado por níquel.
Electrolisis emparejada que combina procesos anódicos y catódicos.

Principales resultados:

Construcción exitosa de enlaces C ((sp2) - C ((sp3)) directamente desde los alcoholes y los bromuros de arilo.
Se ha demostrado un amplio alcance del sustrato, tolerando varios grupos funcionales.
Aplicación en las etapas tardías de la arilación de productos naturales y farmacéuticos complejos.

Conclusiones:

El método desarrollado ofrece una ruta eficiente para la formación de enlaces C(sp2) -C(sp3).
Esta electrólisis emparejada catalizada por níquel es una herramienta versátil para la síntesis orgánica.
La aplicabilidad de la reacción a moléculas complejas destaca su importancia práctica.

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