Method for Preparing 2,5-Dipcryl-1,3,4-Oxadiazole.
Patent, Filed 23 Apr 87, patented 11 Oct 88,
DEPARTMENT OF THE NAVY WASHINGTON DC
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This invention relates to polynitro aromatic compounds and more particularly to thermally stable polynitro aromatic explosive compounds. A process for preparing 2,5-dipicry-1,3,4-oxadiazole by reacting N,Nbis2,4,6-trinitrobenzoylhydrazine with phosphorus pentachloride in a chlorinated hydrocarbon which is 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,1,2-trichloroethylene, or a mixture thereof at a temperature of from 70C to the reflux temperature is disclosed. Patents PAT-CL-548-145. aw
- Ammunition and Explosives