期刊
ORGANIC PROCESS RESEARCH & DEVELOPMENT
卷 23, 期 6, 页码 1275-1279出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.oprd.9b00186
关键词
synthesis; energetic materials; explosives; propellants; process chemistry
资金
- US Army
- Office of Naval Research
A safer, convenient, cost-effective, and scalable synthesis for 3,4-dicyanofuroxan (C4N4O2) is described. Dropwise treatment of a well-stirred suspension of cyanoacetic acid in dichloromethane with concentrated mixed acid (HNO3/H2SO4) affords dicyanofuroxan in 72% yield and in 84% purity after liquid chromatography analysis. Single crystal X-ray diffraction studies further confirm the product and yield its molecular conformation and crystal packing. During the dropwise addition of mixed acid, self-heating occurs, and this event is necessary for the reaction to adequately proceed. However, such self-heating is limited to the refluxing temperature of dichloromethane. This new method supersedes the previous methods used to synthesize dicyanofuroxan, which were low-yielding and of significantly lower purity, irreproducible, relied on expensive reagents, and suffered from dangerous exothermic profiles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据