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Adición de arenos al etileno y al propeno catalizados por el rutenio
Marty Lail1, Benjamin N Arrowood, T Brent Gunnoe
1Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA.
Journal of the American Chemical Society
|June 19, 2003
Resumen
El complejo hidridotris ((pyrazolyl) borato de rutenio ((II) cataliza la conversión del benceno con etileno o propeno para formar productos alquilaromáticos. El catalizador muestra una leve selectividad para el propilbenceno lineal sobre el isopropilbenceno.
Área de la Ciencia:
- Química organometálica Química orgánica de los metales.
- La catálisis de la catálisis.
- Síntesis orgánica La síntesis orgánica.
Sus antecedentes:
- Los complejos de rutenio son catalizadores versátiles en las transformaciones orgánicas.
- Las alquilaciones de compuestos aromáticos son importantes procesos industriales.
Objetivo del estudio:
- Para investigar la actividad catalítica de un precursor del complejo TpRuII ((CO) ((Me) ((NCMe).
- Para explorar la conversión de benceno con alceno utilizando este sistema de catalizador.
Principales métodos:
- Preparación y caracterización del catalizador.
- Reacción del benceno con etileno o propeno bajo condiciones catalíticas.
- Análisis de los productos alquilaromáticos.
Principales resultados:
- TpRuII ((CO) ((Me) ((NCMe) actúa como un precursor de catalizador muy eficaz.
- La especie activa TpRu (CO) (Ph) (NCMe) se forma in situ.
- Se observó una selectividad leve para el propilbenceno lineal sobre el isopropilbenceno.
Conclusiones:
- El complejo de rutenio estudiado es un catalizador viable para la alquilación del benceno.
- La vía de reacción implica la formación de un intermediario fenil-rutenio.
- La optimización adicional puede mejorar la selectividad para isómeros específicos.
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