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A focus of recent interest in high energetic compounds has been the synthesis of polynitro polyaza cyclic compounds showing high performance and low sensitivity to friction and impact.1,2,3 Accordingly, several explosives such as triamino-trinitrobenzene (TATB), 3-nitro-1,2,4-triazoline-5-one (NTO), 1,3,5-trinitrotriazacyclohexane (RDX), 1,3,5,7-tetranitrotetra-azacyclooctane (HMX), and hexanitrohexaazaisowurzitane (HNIW, CL-20) have been synthesized.3,4 In the treatment with amines such as ammonia, hydrazine, and guanidine, polynitro imidazoles often led to stable salts which were suitable for high energetic materials.5 In addition, nitro imidazoles were valuable to the pharmaceutical chemistry as nitro-containing synthetic intermediates and drugs.1,6 Even though some azoles were insensitive towards accidental impact, their performance is often lower than that of RDX, one of the most widely used explosives. Recently 1,1-diamino-2,2-dinitroethylene (FOX-7) was emerging as a potential candidate for insensitive high explosives. FOX-7 has attracted substantial interest because it was expected that its performance was similar and its sensitivity could be much lower in comparison with RDX.7 Since imidazole derivatives with more than two nitro groups, like 2,4,5-trinitroimidazole were expected to be highly powerful, various nitroimidazoles have been prepared previously.8 In continuing efforts, we focused on synthesizing nitroimi-dazoles consisted of dinitromethylene moiety as in FOX-7. In this paper, we report the synthesis of 1-methyl-5-nitro-2-(trinitro-methyl)-1H-imidazole (1), 1-methyl-5-nitro-2-(dinitromethyl)-1H-imidazole (2) and its salts