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Updated: Jan 13, 2026

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Formación de Oxindol y Dihidrobenzofurano Espirocíclicos mediante una Secuencia de Ciclación-Captura Nucleofílica

Bing-Xia Wang¹, Bin-Xiang Yang¹, Bao-Yu Du¹

¹College of Chemical Engineering, State Key Laboratory of Advanced Separation Membrane Materials, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.

The Journal of organic chemistry

|January 7, 2026

Resumen

Este estudio presenta un novedoso método catalizado por paladio para la difuncionalización dearomatizante de indoles y benzofuranos. El proceso sintetiza eficientemente espiroxindoles y espirodihidrobenzofuranos a través de espirociclación y adición nucleofílica.

Área de la Ciencia:

Química Orgánica
Catálisis
Química Heterocíclica

Sus antecedentes:

La difuncionalización dearomatizante ofrece una ruta directa a compuestos heteroalicíclicos complejos.
La catálisis de paladio es una herramienta poderosa para la funcionalización C-H y la formación de enlaces C-C.

Objetivo del estudio:

Desarrollar una novedosa difuncionalización dearomatizante de indoles y benzofuranos catalizada por paladio.
Sintetizar espiroxindoles y espirodihidrobenzofuranos a través de espirociclación y adición nucleofílica.

Principales métodos:

Alquenileterificación catalizada por paladio de indoles con cadena de alquino C3.
Espirociclación dearomatizante seguida de adición nucleofílica con metanol.
Alquenilacetoxilación dearomatizante de benzofuranos con cadena de alquino C3 con ácido acético.

Principales resultados:

Se sintetizó una serie de espiroxindoles en rendimientos moderados a buenos.
Se obtuvieron espirodihidrobenzofuranos en rendimientos moderados a excelentes.
Se realizaron estudios preliminares sobre síntesis asimétrica y transformaciones de productos.

Conclusiones:

El método desarrollado proporciona una vía eficiente para la construcción de compuestos heterocíclicos espirocíclicos.
Este trabajo amplía el alcance de las estrategias de difuncionalización dearomatizante en la síntesis orgánica.

Palabras clave:

difuncionalización dearomatizante espiroxindoles espirodihidrobenzofuranos catálisis de paladio indoles benzofuranos química orgánica síntesis heterocíclica

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