Some Common Nitrogen Electrophiles Oxides, Oxoacids, and Oxoanions

Under anhydrous conditions, ammonia acts as a nucleophile toward CI2, giving successively NHjCl, NHCI2, and NCI3, as shown below  

NBr3 exists but is very reactive (indeed explosive) and has been prepared at very low temperatures i —100 °C) via the following reaction  

2 SOME COMMON NITROGEN ELECTROPHILES OXIDES, OXOACIDS, AND OXOANIONS 

The two oxides N2O3 and N2O5 are classic acidic oxides on exposure to water, they hydrolyze immediately to nitrous acid (HNO2) and nitric acid (HNO3), respectively  

For N2O3, the NO (nitroso) nitrogen is the presumptive electrophilic site, as shown below. 

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