使用羟胺盐酸盐以一步法从双氰胺钠合成目标含能材料3-氨基-1,2,4(4 H)-恶二唑-5-酮(AOD)。通过新颖的方法以高收率制备AOD,并使用光谱学(IR,拉曼,NMR)技术对其进行表征。AOD(3)的高含氮羟胺盐和肼盐是由它们各自的氮碱以高收率制备的。通过单X射线晶体学证实了合成分子的固态结构。3-氨基-1,2,4(4 H)-恶二唑-5-酮(AOD,3),3-氨基-1,2,4(4 H)-恶二唑-5-酮-羟胺(AOD-HyAm ,5)和3-氨基-1,2,4(4 H)-恶二唑-5-酮-肼(AOD-Hy,6)的密度分别为1.76、1.73和1.64 g cc -1。通过热重分析评估分子的热稳定性。对分子进行非等温动力学,以得出活化能。使用氧弹量热法确定恒定体积的燃烧能量,并根据实验值计算形成的热量。通过使用冲击和摩擦测试来测量分子的敏感性。
使用羟胺盐酸盐以一步法从双氰胺钠合成目标含能材料3-氨基-1,2,4(4 H)-恶二唑-5-酮(AOD)。通过新颖的方法以高收率制备AOD,并使用光谱学(IR,拉曼,NMR)技术对其进行表征。AOD(3)的高含氮羟胺盐和肼盐是由它们各自的氮碱以高收率制备的。通过单X射线晶体学证实了合成分子的固态结构。3-氨基-1,2,4(4 H)-恶二唑-5-酮(AOD,3),3-氨基-1,2,4(4 H)-恶二唑-5-酮-羟胺(AOD-HyAm ,5)和3-氨基-1,2,4(4 H)-恶二唑-5-酮-肼(AOD-Hy,6)的密度分别为1.76、1.73和1.64 g cc -1。通过热重分析评估分子的热稳定性。对分子进行非等温动力学,以得出活化能。使用氧弹量热法确定恒定体积的燃烧能量,并根据实验值计算形成的热量。通过使用冲击和摩擦测试来测量分子的敏感性。
The Reaction of<i>N</i>-Cyanocarbonimidate and Related Compounds with Hydroxylamine
作者:Takayuki Suyama、Nobuyuki Ozawa、Noriyuki Suzuki
DOI:10.1246/bcsj.67.307
日期:1994.1
O-ethyl S-methyl N-cyanocarbonimidothioate reacted with hydroxylamine to give 5-amino-3-ethoxy-1,2,4-oxadiazole, whereas diethyl N-cyanocarbonimidate reacted to give 3-amino-5-ethoxy-1,2,4-oxadiazole. The reaction of ethyl N-cyanocarbamate or S-methyl N-cyanothiocarbamate with hydroxylamine afforded 3-amino-1,2,4-oxadiazol-5(4H)-one.
New NO-Donors with Antithrombotic and Vasodilating Activities, Part 16 3-Amino-1,2,4-oxadiazol-5-ones as Prodrugs for Hydroxyguanidines
作者:Klaus Rehse、Stephan Bade
DOI:10.1002/ardp.19963291205
日期:——
This hypothesis was tested indirectly by measuring the antithrombotic properties of these compounds 2 h after oral administration to rats (60 mg/kg). In mesenteric arterioles seven compounds moderately (≥ 10%) inhibited the formation of thrombi by a laser beam. Maximum effects were observed in 6c (4‐pentyl) and 6f (4‐benzyl). The lack of activity in the corresponding 2‐pentyloxadiazolone 10c, where no
The targeted energetic material 3-amino-1,2,4(4H)-oxadiazol-5-one (AOD) was synthesized from sodium dicyanamide using hydroxylamine hydrochloride in a one-step procedure. AOD was prepared by a novel procedure in good yield and characterized using spectroscopic (IR, Raman, NMR) techniques. The high nitrogen-containing hydroxylamine and hydrazine salts of AOD (3) were prepared from their respective nitrogen
使用羟胺盐酸盐以一步法从双氰胺钠合成目标含能材料3-氨基-1,2,4(4 H)-恶二唑-5-酮(AOD)。通过新颖的方法以高收率制备AOD,并使用光谱学(IR,拉曼,NMR)技术对其进行表征。AOD(3)的高含氮羟胺盐和肼盐是由它们各自的氮碱以高收率制备的。通过单X射线晶体学证实了合成分子的固态结构。3-氨基-1,2,4(4 H)-恶二唑-5-酮(AOD,3),3-氨基-1,2,4(4 H)-恶二唑-5-酮-羟胺(AOD-HyAm ,5)和3-氨基-1,2,4(4 H)-恶二唑-5-酮-肼(AOD-Hy,6)的密度分别为1.76、1.73和1.64 g cc -1。通过热重分析评估分子的热稳定性。对分子进行非等温动力学,以得出活化能。使用氧弹量热法确定恒定体积的燃烧能量,并根据实验值计算形成的热量。通过使用冲击和摩擦测试来测量分子的敏感性。