Eurenco

Herakles

Snpe Materiaux Energetiques

Arianegroup Sas

Guy Cagnon

Guy M Jacob

Gregoire Herve

Grégoire Herve

Jean-Marc Bouchez

Frederic Alvarez

Geneviève Eck

A method for obtaining solutions that contain 1,2,4-triazole-5-one (OTA) in concentrated sulphuric acid, includes using 3-amino-1,2,4-triazole (ATA) as a precursor of OTA. There is also provided a method for preparing 3-nitro-1,2,4-triazole-5-one (4) (ONTA) from the solutions.

Method for obtaining solutions of OTA in a concentrated sulfuric acid medium; said solutions; and method for preparing ONTA

A subject matter of the present invention is: in which: and Het is an azolyl radical: nitroazolyl or tetrazolyl; with the exception of 3-nitro-4-(4-nitro-1,2,3-triazol-1-yl)furazan;

Furazane derivatives, preparation thereof and energetic compositions containing them

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 &#x3b1;,&#x3b2;-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.

Process for the 2-stage synthesis of hexanitrohexaazaisowurtzitane starting from a primary amine

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Ballancourt, France

Guy Cagnon