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Dioxofosforano de origen estabilizado de carbodifosforano: un HO2 sintético valioso

Zhizhou Liu^1,2, Alasdair I McKay¹, Lili Zhao³

¹School of Chemistry, Faculty of Sciences, Monash University, Clayton 3800, Australia.

Journal of the American Chemical Society

|April 18, 2022

Resumen

Los investigadores estabilizaron un compuesto reactivo de fósforo, el hexafenilcarbodifosforano (CDP), para crear un agente fosforilador versátil. Este agente transfirió con éxito el fragmento de HPO2 a varios sustratos, permitiendo nuevas vías sintéticas.

Área de la Ciencia:

Química sintética
Química de los organofosforos
Mecanismos de reacción

Sus antecedentes:

La fosforilación y la fosforilación son transformaciones sintéticas clave.
La estabilización de los intermedios de fósforo altamente reactivos es un reto.
Los dioxofosforanos son especies de fósforo extremadamente reactivas.

Objetivo del estudio:

Para estabilizar el isómero termodinámicamente menos favorable de HO2P.
Desarrollar un agente fosforilador versátil para aplicaciones sintéticas.
Investigar el mecanismo de reacción para entregar la unidad HO2P.

Principales métodos:

Estabilización de HO2P mediante el hexafenilcarbodifosforano (CDP) rico en electrones.
Caracterización del complejo monomérico CDP·PHO resultante.
Reacción de CDP·PHO con varios sustratos (alcoholes, aminas, ácidos carboxílicos y agua).
Aislamiento y caracterización de nuevos productos que contienen fósforo.
Estudios computacionales para elucidar las vías de reacción.

Principales resultados:

El monómero CDP·PHO fue sintetizado y caracterizado con éxito.
CDP·PHO demostró versatilidad como agente fosfonilador, transfiriendo el fragmento de HPO2.
Se sintetizaron y caracterizaron por primera vez nuevos compuestos a base de fósforo.
El análisis computacional indicó que se prefiere una vía de adición-eliminación a la de eliminación-adición.

Conclusiones:

El hexafenilcarbodifosforano (CDP) estabiliza eficazmente las especies HO2P reactivas.
El complejo CDP·PHO sirve como un nuevo y versátil agente fosforilador.
Este enfoque proporciona una nueva ruta para sintetizar varias moléculas que contienen fósforo.

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