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Los cationes centrados en el fósforo ((III) estabilizado con carbenos [LPX ((2)) ] ((+) y [L ((2)) PX ((2+)) (L =

Jan J Weigand¹, Kai-Oliver Feldmann, Florian D Henne

¹Anorganische und Analytische Chemie and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster, Germany. jweigand@uni-muenster.de

Journal of the American Chemical Society

|November 4, 2010

Resumen

Los investigadores desarrollaron un nuevo método para sintetizar compuestos de fósforo estabilizados por carbenos N-heterocíclicos (NHC). Este avance permite la creación de nuevos derivados del fósforo catiónico con grupos ciano y azido.

Área de la Ciencia:

Química de los organofosforados Química de los organofosforados
Grupo Principal Química.
Química de los carbenos La química de los carbenos

Sus antecedentes:

Los carbenos N-heterocíclicos (NHC) son ligandos versátiles en la estabilización de las especies reactivas.
Los compuestos de fósforo catiónico son importantes intermediarios sintéticos.
El desarrollo de nuevos sintetones de fósforo es crucial para el avance de la química sintética.

Objetivo del estudio:

Establecer una síntesis versátil y de alto rendimiento para los cationes de fósforo (III) estabilizados por NHC.
Para explorar la funcionalización de estas nuevas síntonas de fósforo.
Demostrar las primeras reacciones de desplazamiento en cationes centrados en el fósforo (III) estabilizados por NHC.

Principales métodos:

Utilizó un reactivo de "transferencia de sustituto de ónio" para la síntesis.
Reacciones de funcionalización posteriores realizadas.
Productos caracterizados utilizando espectroscopia de RMN y cristalografía de rayos X.

Principales resultados:

Logró una síntesis versátil y de alto rendimiento de sintonas de fósforo [PCl(2) ](+) y [PCl](2+) estabilizadas por NHC.
Se han sintetizado con éxito derivados catiónicos sustituidos por ciano y azido.
Demostraron los primeros ejemplos de reacciones de desplazamiento en estos nuevos cationes de fósforo.

Conclusiones:

El método desarrollado proporciona un acceso eficiente a valiosas síntonas de fósforo estabilizadas por NHC.
Las reacciones de funcionalización y desplazamiento abren nuevas vías en la química de los organofosforados.
Este trabajo amplía el alcance de la química del grupo principal estabilizada por NHC.

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