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El acoplamiento reductor enantioselectivo catalizado por cobre de los alquenilazarenos con las cetonas
Aakarsh Saxena1, Bonnie Choi, Hon Wai Lam
1EaStCHEM, School of Chemistry, University of Edinburgh, United Kingdom.
Journal of the American Chemical Society
|May 9, 2012
Resumen
Este estudio presenta un nuevo método catalítico para crear compuestos quirales de azaareno. El acoplamiento reductor enantioselectivo de alquenilazarenos y cetonas produce valiosos heterociclos aromáticos con alta selectividad.
Área de la Ciencia:
- Química orgánica es la química orgánica.
- La catálisis de la catálisis.
- Síntesis asimétrica de síntesis.
Sus antecedentes:
- Los compuestos de azaareno quiral son bloques de construcción importantes en la química medicinal y la ciencia de los materiales.
- Desarrollar métodos sintéticos enantioselectivos eficientes para estos compuestos sigue siendo un desafío significativo.
Objetivo del estudio:
- Desarrollar un nuevo método catalítico enantioselectivo para la síntesis de compuestos quirales que contienen azaareno.
- Para explorar el acoplamiento reductivo de alquenilazarenos con cetonas utilizando hidruro de cobre catálisis.
Principales métodos:
- Se utilizó la catálisis de hidruro de cobre para promover la reacción de acoplamiento reductor enantioselectivo.
- Se emplean azaarenas que contienen CN para activar alquenos adyacentes para adición nucleofílica.
- Investigó la tolerancia de la reacción a varios azaarenos y cetonas.
Principales resultados:
- Desarrolló con éxito un acoplamiento reductor enantioselectivo de alquenilazarenas con cetonas.
- El método proporciona heterociclos aromáticos con cadenas laterales que contienen alcohol terciario.
- Se han logrado altos niveles de diastereoselectividad y enantioselectividad en los productos.
Conclusiones:
- El método catalítico desarrollado ofrece una valiosa ruta a los compuestos quirales que contienen azaareno.
- El proceso demuestra un amplio alcance de sustrato y un excelente control estéreo.
- Este enfoque amplía el conjunto de herramientas para la síntesis asimétrica de moléculas heterocíclicas complejas.
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