Synthesis of 5,7-diamino-4,6-dinitrobenzofuroxan

Details Synthesis of 5,7-diamino-4,6-dinitrobenzofuroxan Synthesis of 5,7-diamino-4,6-dinitrobenzofuroxan

1992-05-11

1994-04-05

Stoll, Robert L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D27112

Patent

active

H00013048

ABSTRACT:
5,7-Diamino-4,6-dinitrobenzofuroxan is synthesized in high yield by aminan of 7-amino-4,6-dinitrobenzofuroxan with hydroxylamine in the presence of strong base such as potassium hydroxide. Acidification of the potassium salt produces a fine powder. Recrystallization of the powder by an extraction process under vacuum in solvents such as dimethylformamide results in large, cube-like crystals which can be pressed to high density explosive formulations. These explosive formulations show high performance as explosives.

REFERENCES:
March, Advanced Organic Chemistry p. 600 (1985).
Potts, Comprehensive Heterocyclic Chemistry, V. 6 pp. 411-412 (1984).
Weissberger, Separation and Purification pp. 220-223, 510-528 (1956).

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