Nitrohydroxylamine, reaction+3-pyrroline

A good example of a concerted cheletropic elimination is the reaction of 3-pyrroline with IV-nitrohydroxylamine, which gives rise the the diazene 21, which then undergoes elimination of nitrogen. 

A good example of a concerted elimination is the reaction that takes place on treatment of 3-pyrrolines with N-nitrohydroxylamine. The reactive intermediate C is capable of elimination of molecular nitrogen. The reaction has been shown to be... 

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