Condensation Reaction Of Tetrazine Derivatives And Aminofurazan

The high-nitrogen Energetic compounds have been a hot of international research because of the molecular structure and specific properties. On the one hand, it contains a large number of C-N,C=N,N-N,N=N at molecular structure with a high bond energy; on the other hand, electronegativity of nitrogen and oxygen atom are higher than carbon atom, not only the aza-aromatic ring system forms the structure of the benzeneπ-bond, but also it has features of insensitive and heat-stable. The rings of tetrazine, tetrazole and furazan are three typical structural units of nitrogen-containing.In this paper,3,6-bis(3,5-dimethyl pyrazole)-s-tetrazine which is an important precursor of making s-tetrazine high-nitrogen compounds was synthesized with using guanidine nitrate, hydrazine and acetylacetone as the raw materials. Its synthesis process was optimized, and we obtained the optimum conditions.In this paper,3,6-double(1H-1,2,3,4-tetrazole-5-amino)-s-tetrazine was synthesized as high application potential of tetrazine compounds in the field of high-nitrogen energetic materials, when 1,2,3,4-tetrazole was introduced at aza-aromatic ring structure of 3,6-bis (3,5-dimethylpyrazolyl)-s-tetrazine. In order to optimize its performance, active groups (-NO2) was introducted at structure of tetrazole ring.In this paper, as "hidden nitro", amino-furazan ring was also introducted at aza-aromatic ring structure of 3,6-bis(3,5-dimethylpyrazole)-s-tetrazine, we obtained three tetrazine-furazan ring compounds and optimized their synthetic process from ratio, catalyst, temperature and time.