Diaziridinones, 1, undergo oxidation-reduction and rearrangement reactions in the presence of substituted hydrazines. Reaction of di-t-butyldiaziridinone, la, with 1, 2-di-t-butylhydrazine, 2a, affords 1, 3-di-t-butylurea and azobis-2-methyl-2-propane (major products), l-(t- butylcarbarnyl)-2, Z-dimethylaziridinel 3a (ie., Nt-butyl-2, 2-dimethylaziridinecarboxamide), in 2070 yield, and a few per cent of di-t-butylcarbodiimide. In the reaction of di-t- ...