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Se trata de un distaniirano estable.

Lise Baiget¹, Henri Ranaivonjatovo, Jean Escudié

¹Université Paul Sabatier, Hétérochimie Fondamentale et Appliquée, UMR 5069, 118 route de Narbonne, 31062 Toulouse Cedex 04, France.

Journal of the American Chemical Society

|September 24, 2004

Resumen

Los investigadores sintetizaron el primer compuesto de anillo de tres miembros con dos átomos de estaño y un átomo de carbono, un nuevo 1,2-distannirane. Este compuesto de organotina fue creado utilizando una síntesis de dos pasos a partir de un precursor de fluorenilstannyl.

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Área de la Ciencia:

Química organometálica Química orgánica de los metales.
Química sintética de la química sintética.

Sus antecedentes:

Los anillos de tres miembros son estructuras fundamentales en la química.
Los compuestos organotínicos exhiben una diversa reactividad y aplicaciones.
Las síntesis anteriores no han producido anillos estables de tres miembros con dos átomos de estaño.

Objetivo del estudio:

Para sintetizar y caracterizar el primer compuesto de anillo de tres miembros estable que contiene dos átomos de estaño y un átomo de carbono.
Explorar la accesibilidad sintética de nuevos heterociclos de organotina.

Principales métodos:

Se empleó un procedimiento sintético de dos pasos.
La síntesis comenzó a partir de un precursor de 9-[bis(2,4,6-triisopropilfenil) fluorostanil]clorometilenofluoreno.
La caracterización probablemente involucró métodos espectroscópicos (NMR, espectrometría de masas) y potencialmente cristalografía de rayos X.

Principales resultados:

Se logró la síntesis exitosa de 1,1,2,2-tetra(2,4,6-triisopropilfenilo)-3-fluorenilideno-1,2-distaniirano. fue logrado.
Esto representa el primer caso reportado de un anillo estable de tres miembros que contiene un enlace estaño-estaño y un átomo de carbono.
Es probable que los voluminosos grupos triisopropilfenilo contribuyan a la estabilidad del anillo distaniirano.

Conclusiones:

Se ha accedido a una nueva clase de compuestos organotínicos, los 1,2-distaniiranos.
La ruta sintética proporciona un método viable para la construcción de heterociclos de organotina tensa.
Este descubrimiento abre caminos para explorar la química y las aplicaciones de los distaniiranes.