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Bis(trimethylsilyl)sulfur diimide

Bis(trimethylsilyl)sulfur diimide is the organosulfur compound with the formula S(NSiMe<sub>3</sub>)<sub>2</sub> (Me = CH<sub>3</sub>). A colorless liquid, it is a diaza analogue of sulfur dioxide, i.e., a sulfur diimide. It is a reagent in the synthesis of sulfur nitrides. For example, it is a precursor to C<sub>2</sub>(N<sub>2</sub>S)<sub>2</sub>.

Bis(trimethylsilyl)sulfur diimide is prepared by the reaction of thionyl chloride and sodium bis(trimethylsilyl)amide:

SOCl<sub>2</sub> + 2 NaN(SiMe<sub>3</sub>)<sub>2</sub> → S(NSiMe<sub>3</sub>)<sub>2</sub> + 2 NaCl + O(SiMe<sub>3</sub>)<sub>2</sub>

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