Patent · US Active

Dinitropyrazole derivatives, their preparation, and energetic compositions comprising them

US8440839B2 · kind B2 · utility

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Key dates

Filing dateAug 27, 2012
Grant dateMay 14, 2013
Priority date
Expiry dateAug 27, 2032

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D231/46
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The present invention provides: 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;

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.