3,4-Bis(4-aminofurazan-3-yl)-furoxan was synthesized by the dimerizaion of 3-amino-4-oxy cyano-furazan. However, 3-amino-4-oxycyanofurazan was not steady and could not be separated, purified and confirmed by spectrum. Therefore, 1,3-dipolar cycloaddition reactions of 3-amino-4-oxycyanofurazan were performed with four different olefins, and four novel compounds were synthesized, which were 3-(4-aminofurazan-3-yl)-5-cyano-Δ²-isoxazoline, 3-(4-aminofurazan-3-yl)-5-acetoxy-Δ²-isoxazoline, 3-(4- aminofurazan-3-yl)-5-butyl-Δ²-isoxazoline and 3-(4-aminofurazan-3-yl)-cyclohexyl-Δ²-isoxazoline. At the same time, 3-amino-4-(N-benzoyloxyaminocarbonyl)-furazan was synthesized by the capture of 3-amino- 4-oxycyanofurazan with benzoyl chloride. The structures of the five novel compounds were confirmed by IR, ¹H NMR, ¹³C NMR, MS techniques and elemental analysis. These studies provided indirect evidences for the presence of 3-amino-4-oxycyanofurazan.

Key words: 3-amino-4-oxycyanofurazan, 1,3-dipolar cycloaddition, capture, characterization