Synthesis of polyazapolycyclic caged polynitramines

Article abstract of DOI:10.1016/S0040-4020(98)83040-8

Syntheses of new polyazapolycyclic caged polynitramines are described. Sequentially reacting 4,10-dibenzyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12- hexaazaisowurtzitane (5a) with NOBF₄ and NO₂BF₄ in sulfolane solvent produces 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo- [5.5.0.0^5,9.0^3,11] dodecane, 6). Syntheses of two new polyazapolycyclic caged trinitramines, 3,5,12-trinitro-3,5,12-triazawurtzitane (7a) and 2,4,10- trinitro-2,4,10-triazaadamantane (12a), as well as their labile parent secondary amines, are discussed. A new caged polynitrosamine, 3,5,12- trinitroso-3,5,12-triazawurtzitane (7d), has been obtained by ring-cleavage nitrosation of the new hexamine-wurtzitane compound 3,5,7,9- tetraazahexacyclo[9.3.1.1^3,7.0^2,9.0^4,13.0^5,10]-hexadecane (10).