Sulfamides mixed

Choquette et al. investigated the possibilities of using a series of substituted sulfamides as possible electrolyte solvents (Table 12). These compounds are polar but viscous liquids at ambient temperature, with viscosities and dielectric constants ranging between 3 and 5 mPa s and 30 and 60, respectively, depending on the alkyl substituents on amide nitrogens. The ion conductivities that could be achieved from the neat solutions of Lilm in these sulfamides are similar to that for BEG, that is, in the vicinity of 10 S cm Like BEG, it should be suitable as a polar cosolvent used in a mixed solvent system, though the less-than-satisfactory anodic stability of the sulfamide family might become a drawback that prevents their application as electrolyte solvents, because usually the polar components in an electrolyte system are responsible for the stabilization of the cathode material surface. As measured on a GC electrode, the oxidative decomposition of these compounds occurs around 4.3—4.6 V when 100 fik cm was used as the cutoff criterion, far below that for cyclic carbonate-based solvents. 

A number of other secondary nitramide explosives have been prepared from the action of mixed acid on the parent amide. Treatment of sulfuryl chloride with two equivalents of ethanolamine, followed by nitration of the resulting sulfamide (64) with mixed acid, yields the nitramide explosive A, A -dinitro-A, A -bis(2-hydroxyethyl)sulfamide dinitrate (65). " ... 

Hydrolysis of this substance leads by intermediate steps to sulfamide (Scheme 1). Ammonolysis, on the other hand, yields a cyclic mixed derivative of sulfuric acid and carbonic acid (LXXXIII). Sulfuryl amide gives salts and also numerous organic derivatives. A silver salt (AgNH)2S02... 

Sodium nitrite/hydrogen chloride Sulfuric acid amide esters and mixed sulf amides from sym. sulfamides... 

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