Nitration nitryl bromide

None of these things happened when we tried this reaction. What did happen —and it took some puzzling to figure it out—was that it reacted with a nitrate ion as the solvent to give two chromate ions plus nitryl ion, and the nitryl ion made nitryl bromide which decomposes to bromine and N02. Incidentally, we found that... 

Nitrations with Nitryl Bromide. Nitryl brcmide conpared with the chloride and fluoride, is quite unstable. Nitration experiments were carried out with solutions obtained by the halogen exchange of nitryl chloride with KBr (not separated from unchanged nitryl chloride and decomposition products) carried out in sulfur dioxide solutions at -20°, and using TiBri as catalyst. Yields of nitrations are lower than those obtained with nitryl chloride, due to the formation of more ring-brominated products (29). This can be attributed partly to free bromine being present from the decomposition of nitryl bromide and to the easier homolysis of nitryl bromide itself. 

Nitropropane Nitrosyl fluoride Nitrosyl perchlorate Nitrourea Nitrous acid Nitryl chloride Oxalic acid See under Nitromethane chlorosulfonic acid, oleum Haloalkenes, metals, nonmetals Acetones, amines, diethyl ether, metal salts, organic materials Mercury(II) and silver salts Phosphine, phosphorus trichloride, silver nitrate, semicarbazone Ammonia, sulfur trioxide, tin(IV) bromide and iodide Furfuryl alcohol, silver, mercury, sodium chlorate, sodium chlorite, sodium hypochlorite... 

Nitrogen.—An indirect method of determining the electrophilic reactivity of nitrosyl chloride towards various substrates in aqueous solution has been proposed. The action of nitrosyl chloride, bromide, and thiocyanate or nitrosating agents in micellar systems has been studied, and the results were interpreted in terms of the competition of anions present in solution for sites at the surface of a cationic micelle. The kinetics of the oxidation of nitrite to nitrate by chlorine and bromine are complex and have been interpreted in terms of mechanisms involving the nitryl halides as intermediates ... 

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