- Chemistry of urea nitro derivatives: IV. Reaction of N,N′ -dinitrourea with formaldehyde
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Reaction of N,N′-dinitrourea with formaldehyde, depending on the conditions, leads to formation of various hydroxymethyl derivatives of N-nitroamines and products of their further transformations.
- Il'yasov,Lobanova,Popov,Sataev
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- USE OF POTASSIUM SULFAMATE IN THE SYNTHESIS OF HETEROCYCLIC NITRAMINES
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A preparative method for the synthesis of heterocyclic nitramines containing the methylene tetramine fragment has been proposed.The method is based on the nitration of the condensation products of urea, guanidine, 3,4-diaminofurazan and 5-aminotetrazole with formaldehyde and potassium sulfamate.
- Ermakov, A. S.,Serkov, S. A.,Tartakovskii, V. A.,Novikova, T. S.,Khmel'nitskii, L. I.
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- 2-nitroguanidine derivatives: X. Synthesis and nitration of 4-nitriminotetrahydro-1,3,5-oxadiazine and 2-nitriminohexahydro-1,3,5-triazine and their substituted derivatives
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A new synthetic procedure was developed to obtain 1-hydroxymethyl-2- nitroguanidine from 2-nitroguanidine and formaldehyde without catalyst. Reactions of 2-nitroguanidine and its 1-methyl-and 1-phenylsubstituted derivatives with formaldehyde and urotropin under acid catalysis resulted in 4-nitriminotetrahydro-1,3,5-oxadiazine and 2-nitriminohexahydro-1,3,5-triazine and their methyl-and phenyl-substituted derivatives, whose nitration with concn. HNO3 in the presence of acetic anhydride and concn. H 2SO4 depending on the temperature conditions led to the formation of 4-nitrimino-3,5-dinitrotetrahydro-1,3,5-oxadiazine, 3-methyl-4-nitrimino-5-nitrotetrahydro-1,3,5-oxadiazine, 2-nitrimino-5- nitrohexahydro-1,3,5-triazine, and 1,3,5-trinitro-hexahydro-1,3,5-triazine-2- one.
- Metelkina
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p. 1437 - 1440
(2008/09/16)
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- Preparation of 2,4,6-trinitro-2,4,6-triaza-cyclohexanone
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A method for the preparation of 2,4,6-trinitro-2,4,6-triaza-cyclohexanone yielding a product with a low concentration of impurities which results in improved thermal stability is disclosed, the method involving the use of either 2-nitroimino-5-nitrohexahydro-1,3,5-triazine or an acid salt of 2-nitroimino-hexahydro-1,3,5-triazine as starting materials, with a mixture of reagents comprising (CF3 CO)2 O and either HNO3 or NH4 NO3. The product is advantageous compared with RDX and HMX since it is more energetic and has a higher density.
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