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3,4-双(4-氨基呋咱-3-基)氧化呋咱由活性中间体3-氨基-4-氧代氰基呋咱分子间发生二聚获得,但3-氨基-4-氧代氰基呋咱不稳定,无法通过分离、纯化及光谱鉴定证实其存在.采用4种不同的烯烃与3-氨基-4-氧代氰基呋咱发生1,3-偶极环加成反应得到3-(4-氨基呋咱-3-基)-5-氰基-Δ2-异噁唑啉、3-(4-氨基呋咱-3-基)-5-乙酰氧基-Δ2-异噁唑啉、3-(4-氨基呋咱-3-基)-5-正丁基-Δ2-异噁唑啉及3-(4-氨基呋咱-3-基)-环己烷并-Δ2-异噁唑啉4种Δ2-异噁唑啉衍生物;采用苯甲酰氯为捕获剂,与3-氨基-4-氧代氰基呋咱反应获得了3-氨基-4-(N-苯甲酸基氨基羰基)呋咱化合物;通过红外光谱、核磁共振光谱、质谱、元素分析表征了5种新化合物的结构,提供了活性中间体3-氨基-4-氧代氰基呋咱存在的间接证据.
3,4-bis (4-amino-furazan-3-yl) furazan oxide is obtained by dimerization between the active intermediate 3-amino-4-oxocyano furazan molecules, Cyano furazan is unstable and can not be confirmed by isolation, purification and spectral identification. The 1,3-dipolar cycloaddition reaction of 4 different alkenes with 3-amino-4-oxocyano furazan To give 3- (4-aminofurazan-3-yl) -5-cyano-Δ2-isoxazoline, 3- Oxazoline, 3- (4-aminofurazan-3-yl) -5-n-butyl-Δ2- isoxazoline and 3- (4-aminofuransan-3-yl) -cyclohexa- Δ2-isoxazoline 4 kinds of Δ2-isoxazoline derivatives; benzoic acid chloride as a capture agent, and 3-amino-4-cyano-cyanofuranan obtained 3-amino-4- (N- Benzoic acid aminocarbonyl) furazan compounds. The structures of five new compounds were characterized by IR, 1H-NMR, MS and elemental analysis. The results showed that the active intermediates 3-amino-4-oxocyano furazan Indirect evidence.