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Updated: Feb 27, 2026

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Formación de enlaces carbono-nitrógeno y nitrógeno-nitrógeno por ataque nucleófilo en nitrosilos coordinados en

Erwin G Abucayon¹, Douglas R Powell¹, George B Richter-Addo¹

¹Price Family Foundation Institute of Structural Biology and Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma , Norman, Oklahoma 73019, United States.

Journal of the American Chemical Society

|June 27, 2017

Resumen

Los investigadores demostraron la formación de nuevos enlaces C-N y N-N utilizando hemes férrico-nitrosilo sintéticos. Los nucleófilos atacaron el grupo de óxido nítrico (NO) unido, produciendo compuestos organo-nitrógeno y N2O.

Área de la Ciencia:

Química bioorgánica
Química organometálica
Investigación del ciclo del nitrógeno

Sus antecedentes:

El ciclo global del nitrógeno implica la conversión de óxidos de nitrógeno inorgánicos (NOx) en compuestos organo-nitrógeno.
Los complejos de hemo sintéticos con óxido nítrico unido (NO) son intermediarios clave en el metabolismo del nitrógeno.

Objetivo del estudio:

Investigar la reactividad de los complejos férrico-hemo-nitrosilo sintéticos con nucleófilos basados en carbono y nitrógeno.
Demostrar nuevas vías para la formación de enlaces C-N y N-N con el ligando de óxido nítrico.

Principales métodos:

Reacción del anión fenilo (nucleófilo basado en C) con [OEP) Fe (NO) 5-MeIm) ]+ y [OEP) Ru (NO) 5-MeIm]+.
Reacción de dietilamida y azida (nucleófilos basados en N) con complejos férrico-hemo-nitrosilo.

Principales resultados:

La adición de aniones de fenilo a los hemes de nitrosilo de hierro y rutenio produjo derivados de C-nitroso y productos desnitrolizados.
Los nucleófilos de dietillamida y azida atacaron el grupo NO unido, formando dietilnitrosamina y N2O, respectivamente.
Estas reacciones representan los primeros ejemplos de formación de enlaces C-N y N-N a través de un ataque nucleófilo a los hemes sintéticos de NO férrico.

Conclusiones:

Las hemas sintéticas de NO férrico son plataformas versátiles para la generación de compuestos organo-nitrógenos.
El ataque nucleófilo al ligando NO proporciona nuevas rutas para la síntesis de enlaces C-N y N-N.
Estos hallazgos contribuyen a la comprensión de las transformaciones del nitrógeno en los sistemas biológicos y químicos.

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