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Los complejos de nitrosoareno-CuI son intermedios en la aminación alilica catalizada por el cobre
Radhey S Srivastava1, Masood A Khan, Kenneth M Nicholas
1Department of Chemistry, University of Louisiana at Lafayette, 70504, USA. rss1805@louisiana.edu
Journal of the American Chemical Society
|May 19, 2005
Resumen
Se sintetizaron y caracterizaron nuevos complejos de cobre (I) con nitrosoarenos. Estos complejos actúan como intermediarios y catalizadores potenciales en reacciones catalizadas por el cobre, específicamente la aminación alilica de las olefinas.
Área de la Ciencia:
- Química organometálica Química orgánica de los metales.
- La catálisis de la catálisis.
- Química sintética inorgánica química sintética.
Sus antecedentes:
- Las reacciones catalizadas por el cobre son cruciales en la síntesis orgánica.
- Los ligandos del nitrosoareno ofrecen posibilidades únicas de coordinación.
- Comprender los intermediarios catalíticos es clave para la optimización de la reacción.
Objetivo del estudio:
- Para sintetizar y caracterizar los nuevos complejos homolepticos Cu (I) -nitrosoareno.
- Para investigar las propiedades estructurales de estos complejos.
- Para explorar el papel de estos complejos en la aminación alilica catalizada por el cobre.
Principales métodos:
- Reacción del nitrosobenzeno y de la N,N'-dietil-4-nitrosoanilina con el [Cu(CH3CN) 4) PF6.6.
- Cristalografía de rayos X para la determinación estructural de complejos 2.
- Reacciones con olefinas y dienos para sondear la actividad catalítica.
Principales resultados:
- Síntesis exitosa de nuevos complejos homolepticos de Cu (I) -nitrosoareno: [Cu (ArNO) ]3PF6.
- La estructura de rayos X del complejo 2 muestra una geometría de coordinación de cobre plano trigonal distorsionada.
- El complejo 1 demuestra un comportamiento intermedio en la aminación alilica catalizada por Cu, lo que lo sugiere como un potencial agente de transferencia de nitrógeno.
Conclusiones:
- Se pueden sintetizar y caracterizar estructuralmente nuevos complejos Cu(I) -nitrosoareno.
- Estos complejos sirven como valiosos intermediarios en las transformaciones catalizadas por el cobre.
- Los hallazgos proporcionan información sobre el mecanismo de la aminación alilica catalizada por Cu.
![[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
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