Silyl-nitrogen compounds: Part XIV — Reactivity of tetrasilaphospha-tetrazene towards some group (IV) derivatives

Abstract

Tetrasila-2-phospha-1-tetrazene (Ms₃Si)₂N-N(SiMe₃)-P=NSiMe3 is oxidized by CBr₄ into [tris(trimethylsilyl)hydrazino] [(trimethylsilyl)imino] (dibromo) phosphorane which lose

Me₃SiBr, on heating in vacuum, to form [bis(trimethylsilyl)hydrazino] [trimethylsilylimino] (bromo)phosphorane. Carbon disulphide forms a [1+2]-cycloadduct, which decomposes at 60°C/10^-3 torr back into its reactants. Dichlorodimethylsilane and tetrachlorosilane behave similarly to form diaza-phospha-silacyclobutane derivatives, whereas, the latter also form a spirobicyclic derivative. All these compounds have been characterised.