La trifluorometilación oxidativa directa C-H catalizada por el cobre de las heteroarenas
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Updated: May 26, 2026
08:43
Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
1Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China.
Journal of the American Chemical Society
|December 8, 2011
Resumen
La activación de C-H catalizada por el cobre permite la metilación trifluorométrica directa de heteroarenos y arenos utilizando (trifluorométil) trimetilesilano. Este método produce eficientemente valiosos compuestos trifluorometilados para productos farmacéuticos y agroquímicos.
Área de la Ciencia:
- Química orgánica es la química orgánica.
- La catálisis de la catálisis.
- Química Medicinal La Química Medicinal es un campo de estudio de la química medicinal.
Sus antecedentes:
- Los compuestos trifluorometilados son cruciales en productos farmacéuticos y agroquímicos.
- La funcionalización directa C-H ofrece una ruta sintética eficiente.
Objetivo del estudio:
- Desarrollar un método de trifluorometilación oxidativa catalizada por cobre para heteroarenos y arenes con déficit de electrones.
- Para explorar el uso de (trifluoromethyl) trimethylsilane como una fuente de trifluoromethyl a través de la activación directa de C-H.
Principales métodos:
- La trifluorometilación oxidativa catalizada por el cobre mediante el uso de (trifluorometil) trimetilsilano.
- Empleando varios oxidantes como el aire y el peróxido de di-tert-butilo.
- Optimización de los sistemas de catalizador (Cu(OAc)2, Cu(OH)2), ligando (1,10-fenantrolina) y base (tert-BuONa/NaOAc).
Principales resultados:
- Trifluorometilación exitosa de 1,3,4-oxadiazoles, 1,3-azoles, perfluoroarenos y indoles.
- Altos rendimientos de productos trifluorometilados logrados en condiciones optimizadas.
- Tolerancia demostrada de diversos grupos funcionales en los sustratos heteroarenos.
Conclusiones:
- El método desarrollado proporciona un acceso eficiente a una gama de heteroarenos trifluorometilados funcionalizados.
- Los compuestos sintetizados tienen un potencial significativo para aplicaciones en el descubrimiento de fármacos y la protección de cultivos.
- Se obtuvieron conocimientos mecanicistas preliminares sobre el proceso de trifluorometilación oxidativa.
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