Straightforward one-pot synthesis of benzofuroxans from o-halonitrobenzenes in ionic liquids
摘要:
Treatment of o-halonitrobenzenes with sodium azide in a [empyrr][BF4]/Bu4NBr/H2O system gives benzofuroxans in high yields, with the recovery and reuse of the ionic liquid for at least ten times.
Synthesis, single crystal structure and performance of N-substituted derivatives of dinitroimidazole
作者:Kehui Hou、Congming Ma、Zuliang Liu
DOI:10.1039/c3nj00521f
日期:——
The N-substituted derivatives of dinitroimidazoles have been synthesized for application as energetic materials. The synthesized compounds were fully characterized by 1H 13C NMR spectroscopy and elemental analysis. Most of them were determined by single crystal X-ray diffraction. The calculated densities of the compounds range between 1.89 and 1.91 g cm−3 and the experimental densities between 1.75 and 1.84 g cm−3, as obtained by X-ray crystallographic analysis. Notably, densities of the N-substituted derivatives of dinitroimidazoles are increased when two amino groups are introduced but decreased when one amino group is introduced.
N-取代的二硝基咪唑衍生物已被合成用于作为能量材料。合成的化合物通过 1H 和 13C NMR 光谱以及元素分析进行了全面表征。大多数化合物通过单晶 X 射线衍射进行了鉴定。化合物的计算密度范围在 1.89 至 1.91 g cm−3 之间,而通过 X 射线晶体学分析获得的实验密度在 1.75 至 1.84 g cm−3 之间。值得注意的是,当引入两个氨基时,二硝基咪唑的 N-取代衍生物的密度增加;而当引入一个氨基时,密度则降低。
Synthesis of 2-Azido-4-nitroimidazole and Its Derivatives for High-Energy Materials
作者:Kehui Hou、Congming Ma、Zuliang Liu
DOI:10.1002/cjoc.201300552
日期:2013.12
2‐Azido‐4‐nitroimidazole and itsderivatives have been synthesized for energetic material applications. The synthesized compounds were fully characterized by 1H, 13C NMR spectroscopy and elemental analysis. Most of them were determined by single crystal X‐ray diffraction. The calculated densities of the compounds range between 1.71 and 1.92 g·cm−3. The calculated detonation pressures (P) for these
合成了2-叠氮基-4-硝基咪唑及其衍生物,用于高能材料。通过1 H,13 C NMR光谱和元素分析对合成的化合物进行了充分表征。它们中的大多数是通过单晶X射线衍射确定的。化合物的计算密度在1.71和1.92g·cm -3之间。这些衍生物的计算的爆震压力(P)在25.17至32.62GPa的范围内,并且爆破速度(D)在7.65至8.55 km·s -1范围内分布。