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Catalizadores a base de hierro para la hidrogenación de ésteres a alcoholes

Sumit Chakraborty¹, Huiguang Dai, Papri Bhattacharya

¹Department of Chemistry, University of Cincinnati , Cincinnati, Ohio 45221-0172, United States.

Journal of the American Chemical Society

|May 22, 2014

Resumen

Un nuevo catalizador a base de hierro permite la hidrogenación de ésteres suaves para la producción de alcohol. Este método más ecológico convierte eficientemente los ésteres grasos del aceite de coco en alcoholes detergentes sin disolventes.

Área de la Ciencia:

La catálisis de la catálisis.
Química orgánica es la química orgánica.
Química verde es la química verde.

Sus antecedentes:

La hidrogenación de ésteres es crucial para la producción de alcoholes, especialmente los alcoholes grasos utilizados en los bienes de consumo.
Los métodos existentes a menudo requieren condiciones duras (alta temperatura / presión) o costosos catalizadores de metales preciosos (rutenio, osmio).

Objetivo del estudio:

Desarrollar un método más sostenible y eficiente para la hidrogenación de ésteres.
Explorar el uso de catalizadores metálicos abundantes en la tierra para esta transformación.

Principales métodos:

Empleando un catalizador a base de hierro con un ligando PNP-pinzón para la hidrogenación de ésteres.
Prueba de la eficacia del catalizador en condiciones de reacción relativamente suaves.
Aplicación del sistema catalítico a la conversión sin disolventes de los ésteres metílicos de ácidos grasos derivados del aceite de coco.

Principales resultados:

Hidrogenación exitosa de ésteres bajo condiciones suaves utilizando el catalizador de pinza de hierro-PNP.
Alta eficiencia en la conversión de ésteres metílicos de ácidos grasos en alcoholes detergentes.
Factibilidad demostrada de un proceso libre de disolventes para una materia prima industrial relevante.

Conclusiones:

Los catalizadores de pinza a base de hierro ofrecen una alternativa prometedora a los métodos tradicionales de hidrogenación de ésteres.
Este sistema catalítico proporciona una ruta más ecológica y potencialmente más rentable a los alcoholes valiosos.
La aplicación sin disolventes pone de relieve el potencial industrial práctico de esta nueva tecnología.

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