Autooxidation of hydrazine

Stone, D. A. "The Vapor Phase Autooxidation of Unsymmetrical DimethyIhydrazine and 50 Percent Unsymmetrical Dimethyl-hydrazine-50 Percent Hydrazine Mixtures," Report No. ESL-TR-80-21, April 1980. 

It has been reported (69TL5005) that an ESR spectrum was observed during the autooxidation of the aqueous alkaline solution of 3 in the presence of hydrazine. This spectrum was said to be due to structure 43, based on the structure of monodehydro-L-ascorbic (44) (Scheme 9). When that structure was revised to 45, it was deduced that pyrrole ring structures 43 were not formed (74CPB1417). Further studies of the reaction in an aerobic alkaline aqueous solution gave rise to some radical intermediates. 

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