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La apertura del anillo catalizado por el rodio de los benzociclobutenolos con selectividad de sitio complementaria a

Naoki Ishida¹, Shota Sawano, Yusuke Masuda

¹Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan.

Journal of the American Chemical Society

|October 10, 2012

Resumen

Los catalizadores de rodio permiten la apertura selectiva del anillo de los benzociclobutenolos, rompiendo un enlace carbono-carbono específico. Esta reacción ofrece una nueva ruta para la síntesis de estructuras de dihidronaftaleno a través de la inserción de alquinos.

Área de la Ciencia:

Química orgánica es la química orgánica.
La catálisis de la catálisis.
Metodología sintética de la metodología sintética.

Sus antecedentes:

Los benzociclobutenolos son compuestos cíclicos tensados.
La apertura del anillo térmico de los benzociclobutenolos puede dar lugar a mezclas complejas de productos.
La funcionalización selectiva de los benzociclobutenolos sigue siendo un desafío sintético.

Objetivo del estudio:

Desarrollar un nuevo método catalizado por rodio para la apertura de anillos de benzociclobutenol.
Para investigar la selectividad del sitio de la reacción catalizada por el rodio.
Para establecer una nueva ruta sintética para los derivados de dihidronaftaleno.

Principales métodos:

Tratamiento de los benzociclobutenolos con un catalizador de rodio.
Análisis de los productos de reacción utilizando técnicas espectroscópicas.
Exploración de la inserción de alquina en el intermedio con anillo abierto.

Principales resultados:

Se logró la escisión selectiva del enlace C ((sp2) -C ((sp3) adyacente al grupo hidroxilo.
La selectividad del sitio observada contrasta con las vías de apertura de anillos térmicos.
Se desarrolló una nueva reacción de inserción de alquinos, dando como resultado estructuras de dihidronaftaleno.

Conclusiones:

La catálisis del rodio proporciona una herramienta poderosa para la apertura selectiva del anillo de benzociclobutenol.
La metodología desarrollada ofrece una nueva vía para la construcción de andamios de dihidronaftaleno.
Este trabajo amplía la utilidad sintética de los benzociclobutenolos en la síntesis orgánica.

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