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Una ruta directa a la fluostatina C por una fascinante reacción de Diels-Alder

Maolin Yu¹, Samuel J Danishefsky

¹Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway, New York, New York 10027, USA.

Journal of the American Chemical Society

|February 8, 2008

Resumen

La reacción de Diels-Alder es una reacción

Área de la Ciencia:

Química orgánica es la química orgánica.
Química sintética de la química sintética.

Sus antecedentes:

Reacciones de Diels-Alder investigadas que involucran vinilindenos y quinonectales o metacroleína.
Se han observado notables selectividades regionales en los aductos resultantes de Diels-Alder.

Objetivo del estudio:

Explorar los resultados regioquímicos de las reacciones de Diels-Alder entre dienes y dienófilos específicos.
Para demostrar la aplicación de estas reacciones en la síntesis total de fluostatina C y E.

Principales métodos:

Reacciones de cicloadición Diels-Alder realizadas utilizando vinilindenos (compuestos 5 o 6) como dienos.
Utilizados quinonectales (compuestos 7 u 8) o metacroleína como dienófilos en las reacciones.

Principales resultados:

Se encontró que la regioselectividad de los aductos de Diels-Alder era mutuamente contingente, no una propiedad fija de los reactivos.
Aplicó con éxito la reacción de Diels-Alder entre vinilindeno 6 y quinonecatal 8 para la síntesis de fluostatina C y E.

Conclusiones:

Las preferencias regioquímicas en estas reacciones Diels-Alder son interdependientes entre el dieno y el dienófilo.
La estrategia sintética desarrollada permitió las primeras síntesis totales de fluostatina C y E.

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