Abstract: The present invention provides: dinitropyrazole derivatives of formula (I) in which: R=NO2, NH2, NF2, NHOH, OH or NHNH2 and R?=H when R=NH2, NF2, NHOH, OH or NHNH2 or R?=H, NH2 or a linear or branched C1-C4 alkyl group, optionally substituted by at least one hydroxy and/or one fluoro group, when R=NO2; other than 4-amino-3,5-dinitropyrazole; and also the salts of said derivatives of formula (I) in which R?=H; the preparation of said derivatives and of their salts; and energetic compositions comprising at least one of said derivatives and/or at least one salt of such a derivative.

Abstract: A subject-matter of the present invention is a novel process for the synthesis of hexanitrohexaazaisowurtzitane (HNIW), a compound of use as energetic filler in powders, propellants and explosives. This process comprises a first stage of reaction of an ?,?-dicarbonyl derivative with a primary amine which makes it possible to form a hexasubstituted hexaazaisowurtzitane derivative. The HNIW is subsequently obtained directly, in a single reaction stage, by nitration of the hexasubstituted hexaazaisowurtzitane derivative. This process, in only 2 stages starting from a primary amine, is particularly simple and inexpensive.

Abstract: A subject-matter of the present invention is a novel process for the synthesis of hexanitrohexaazaisowurtzitane (HNIW), a compound of use as energetic filler in powders, propellants and explosives.