In reported reactions of X2F4 involving its dissocia- tion into NF2 radicals, olefins gave 1,2-bis(difluor- amino)ethanes, acetylenes gave vinyldifluoramines and t,heir rearrangement products,2 and sulfur- and oxygen- containing compounds led to the corresponding species with the difluoramino group attached to the sulfur and oxygen atoms, re~pectively.~ We report here the synthesis of N-difluoramino-substituted hydrazines. The products were obtained ...