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Reaction of vicarious nucleophilic substitution (VNS) of hydrogen was applied for preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) in a twostep process. Using this approach 3-amino-2,4,6'2'4 6' -hexanitrostilbene (MNHNS) and new 2,6-bis(3-amino-2,4,6-trinitrophenyl)-3,5-dinitropyridine (DAPYX) were obtained.
A series of 2,6-dialkoxy-3,5-dinitropyrazines (R = Me, Et, Pr) has been synthesized and subjected to amination. The yield and purity of the generated 2,6-diamino-3 ,5-dinitropyrazine was found to be independent of the alkoxy group present in the precursor. This contrasts with the behaviour of 1,3,5-trialkoxy-2,4,6-trinitrobenzene (R = Me, Et, Pr), where the purity of the 1,3,5-triamino- 2,4,6-trinitrobenzene...
The thermally stable, insensitive, high explosive 1,3,5-triamino-2,4,6- trinitrobenzene (TATB) is manufactured by amination of 1,3,5-trichloro-2,4,6- trinitrobenzene (TCTNB) in toluene with NH3 gas. It is an isothermal, single-feed, semi-batch, gas-liquid heterogeneous, reaction crystallization process. The amination process is discussed by applying the chemical engineering methodology of mass transfer...
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