Tetrazine-based explosives

Tetrazine-based explosives are often highly energetic. The high nitrogen content of such compounds often results in high crystal density and explosive performance. 3,6-Diamino-1,2,4,5-tetrazine (198) is a starting material for the synthesis of other 1,2,4,5-tetrazines and is itself synthesized from the condensation of triaminoguanidine hydrochloride (195)... 

Chavez and Hiskey continued their research on 1,2,4,5-tetrazine-based explosives and synthesized a number of derivatives which are considered interesting as propellant or smoke-free pyrotechnic ingredients because of their low carbon content, high heat of formation and a density of-1.61 g cm4. One such compound is 3,6-dihydrazino-l,2,4,5-tetrazine which appears to be an important energetic fuel [275, 276]. 

A new area of research and activity in recent years is the development of new explosives based on furazans, furoxans and tetrazines in order to achieve an increase in density, stability, insensitivity and velocity of detonation. As a result, a number of prospective HEMs which are potential ingredients of explosive, propellant and pyrotechnic formulations have been synthesized. 

Explosives are classified as primary or secondary, based on their susceptibility to initiation. Primary explosives, which include lead azide and lead styphnate, are highly susceptible to initiation. Primary explosives often are referred to as initiating explosives because they can be used to ignite secondary explosives. Secondary explosives, which include 2,4,6-trinitrotoluene (TNT), hexahydro-l,3,5-trinitro-l,3,5-triazine (RDX or cyclonite), high melting explosives (HMX) like octahydro-l,3,5,7-tetranitro-l,3,5,7-tetrazine (HMX),... 

Traditionally, tetrazines attract attention as energetic materials in the development of explosives. This year, first members of a new class of electroactive explosives based on nitrate ester-functionalized 1,2,4,5-tetrazines... 

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