【摘要】 以乙二醛为起始原料,常压法制备3,4-二氨基呋咱(DAF),收率56.4%,纯度98.4%。采用"一步法"氧化工艺,以50%H2O2为氧化剂,H2SO4起始浓度56.9%,于35℃反应3.5 h,由DAF合成了3,4-二硝基呋咱(DNF),收率62.5%,纯度99.8%。DNF的结构经13C NMR,IR,MS和元素分析表征。讨论了DAF氧化成DNF的反应历程。更多还原

【Abstract】 3,4-Diaminofurazan(DAF) in yield of 56.4% with purity of 98.4% was prepared from glyoxal under atmospheric pressure.3,4-dinitrofurazan(DNF) in yield of 62.5% with purity of 99.8% was synthesized from DAF by an one-step oxidation using 50% H2O2 as a oxidant in the presence of H2SO4 with initial concentration of 56.9% at 35 ℃ for 3.5 h.The structure of DNF was characterized by 13C NMR,IR,MS and elemental analysis.The reaction mechanism of DAF to DNF was disccused.更多还原