Dimethyltriazanium Chloride

2-Disubstituted triazanium chlorides may be prepared by the reaction in benzene solution of unsymmetrically disubstituted 

Since the aminophospholanes are relatively difficult to prepare, the reaction with the disubstituted hydrazine, if the latter is available, would be the method of choice. 

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Pure dimethyltriazanium chloride decomposes at 133 to 134° (the checker reports 135 to 136°). The salt is very hygroscopic and should be stored in a desiccator. It is readily soluble in water, methanol, ethanol, and dimethyl sulfoxide. An aqueous solution is stable at room temperature. Free iodine is liberated from an acidic iodide solution, and this reaction makes it possible to determine the triazanium content.3... 

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