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Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
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Cicloadición formal catalizada por cerio de cicloalcanolos con alquenos a través de la fotoexcitación dual
Anhua Hu1, Yilin Chen1, Jing-Jing Guo1
1School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China.
Journal of the American Chemical Society
|October 6, 2018
Resumen
Este estudio introduce un nuevo método catalítico para la expansión de anillos de cicloalcanolos, creando lactonas complejas de manera eficiente. El proceso es adaptable para la síntesis a gran escala, incluida la preparación de productos naturales.
Área de la Ciencia:
- Química orgánica
- Catálisis
- La fotoquímica
Sus antecedentes:
- Los cicloalcanolos son materiales de partida comunes.
- Las lactonas puentes sintéticamente desafiantes son compuestos valiosos.
- Se necesitan métodos eficientes para la síntesis de lactona.
Objetivo del estudio:
- Desarrollar un método atómico y económico para la expansión de anillos de cicloalcanolos.
- Para sintetizar lactonas puentes privilegiadas y desafiantes.
- Adaptar el protocolo para la ampliación y la síntesis de productos naturales.
Principales métodos:
- La fotocatálisis sinérgica de cerio y la fotocatálisis inducida por transferencia de electrones.
- Expansión del anillo de los cicloalcanolos.
- Adaptación al flujo continuo para el aumento de escala.
Principales resultados:
- Se ha logrado la expansión del anillo atómico y de paso económico.
- Proporcionó un acceso rápido a las lactonas puenteadas.
- Con éxito sintetizó el núcleo policíclico de nepalactonas a través de flujo continuo.
Conclusiones:
- El sistema catalítico desarrollado ofrece una ruta eficiente a las estructuras de lactona valiosas.
- El protocolo es operacionalmente simple y puede ampliarse.
- Este método facilita la síntesis de productos naturales complejos.
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