Tosyl azideTosyl azide is a reagent used in organic synthesis.UsesTosyl azide is used for the introduction of azide and diazo functional groups. It is also used as a nitrene source and as a substrate for cycloaddition reactions.PreparationTosyl azide can be prepared by the reaction of tosyl chloride with sodium azide in aqueous acetone.SafetyTosyl azide is one of the most stable azide compounds but is still regarded as a potential explosive and should be carefully stored, while particular caution is vital for all reactions in which it is heated at or above 100 °C. The initial temperature of the explosive decomposition is about 120 °C.