METHOD OF PRODUCING 1,3-DIAZIDO-2-NITRO-2-AZAPROPANE Russian patent published in 2012 - IPC C07C247/04 C07B47/00 C06B25/34 

FIELD: chemistry.

SUBSTANCE: invention relates to a novel method of producing 1,3-diazido-2-nitro-2-azapropane (DANP), which is one of the most powerful liquid expolosives. The disclosed method involves nitration of the initial substance, chlorination of the nitration products and subsequent azidation of the obtained reaction mass in a water-acetone medium with sodium azide, where the initial substance used is urea, which is nitrated with a mixture of sulphuric acid and nitric acid, taken in weight ratio 40-60:60-40; the nitrated mass is diluted with water and extracted with ethyl acetate or the nitrated mass is cooled to temperature ranging from minus 15°C to minus 10°C; the obtained precipitate is filtered and dissolved in ethyl acetate, where the product of nitration of urea in ethyl acetate is mixed with aqueous formalin solution in molar ratio 1:4 (urea:formaldehyde), where the obtained reaction mass undergoes treatment with acetic anhydride, followed by treatment with hydrogen chloride or thionyl chloride.

EFFECT: high technological effectiveness and safety of the process, implementation of which enables to obtain an end product which does not require further purification.

1 cl, 4 ex, 1 tbl