Method of synthesizing 5,5'-bistetrazole-1,1'-dioxodihydroxy ammonium salt

Abstract

The invention discloses a method of synthesizing a 5,5'-bistetrazole-1,1'-dioxodihydroxy ammonium salt. The method comprises the following step: synthesizing the 5,5'-bistetrazole-1,1'-dioxodihydroxy ammonium salt by taking dichloroglyoxime, sodium azide, sodium hydroxide and hydroxylamine hydrochloride as raw materials and adopting alcohol solvents by virtue of azidation reaction, acid catalysis cyclization reaction and salt forming reaction. Compared with the prior art, the two-step reaction adopted by the method disclosed by the invention only adopts one solvent, so that not only can type of solvents be reduced, but also the after-treatment process of the azidation reaction can be cancelled. Meanwhile, the types of catalytic acids are expanded, the difficulty of the production process is lowered, the total yield of the reaction is increased, and thus, the method is an efficient and low-cost synthetic method.

Description

technical field [0001] The present invention relates to a new type of insensitive high-energy compound—5,5'-bistetrazole-1,1'-dioxydihydroxyammonium salt (molecular formula is C 2 h 8 N 10 o 4 ) new synthesis method. The energetic compound can not only achieve the goal of being a green substitute for traditional explosive RDX, but also has far better performance than RDX; at the same time, due to its high nitrogen content, it can also realize the anti-toxicity effect on gas generant components such as triaminoguanidine nitrate (TAGN) substitute. Background technique [0002] Researchers have conducted extensive research on the design of new energetic compounds, and the difference between everyone's research lies in the way of increasing internal energy. [0003] The energy of the traditional energetic materials RDX and TNT comes from the oxidation of the oxygen in the molecule to the carbon atoms of the skeleton; ring or cage strained ring compounds ONC and TNAZ further...

AI Technical Summary

Problems solved by technology

[0007] However, these energetic compounds have some disadvantages: aromatic nitro groups and nitramines are somewhat toxic; too many ring and cage strain compounds generally have a long synthetic route (high cost); when high nitrogen compounds each ring or chain An increase in the number of nitrogen atoms on the upper surface will lead to a decrease in thermal and mechanical stability

[0017] However, this method requires multiple replacements of different solvents, especially the use of a large amount of ether, which greatly increases the risk of large-scale production, and the use of hydrogen chloride gas as a catalyst increases the difficulty of product post-processing.

Images