Process for the 2-stage synthesis of hexanitrohexaazaisowurtzitane starting from a primary amine
US7279572B2 · kind B2 · utility
2Cited by
2References
13Claims
0Family size
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Inventors
Key dates
| Filing date | Apr 28, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | May 1, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B25/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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 α,β-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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.