Synthesis of 2,6,9-tri-substituted-4,8-dinitro-2,6,9-triazabicyclo[3.3.1]nona-3,7-diene intermediates toward the preparation of polyaza-adamantanes
申请人:Stern Alfred G.
公开号:US08853220B1
公开(公告)日:2014-10-07
The present invention relates to methods for synthesizing energetic compounds and intermediates thereof. Specifically, the present invention relates to methods for synthesizing adamantanes and intermediates that are useful in such synthesis. Synthesized intermediates are useful in the synthesis of bicyclic and tricyclic substituted adamantanes. Examples of various intermediates are: acyclic 2-nitromalonaldehyde intermediates, 2,6,9-tri-substituted-4,8-dinitro-2,6,9-triazabicyclo[3.3.1]nona-3,7-dienes and 2,6-dinitro-4,8,9,10-tetra-aza-4,8,9,10-tetra-substituted adamantanes. Intermediates synthesized according to the methods of the present invention are useful toward the synthesis of tetraaza-adamantanes, which can serve as precursors to potentially superior new high-energy-density compounds (HEDCs). The tricyclic intermediate compound has a structure of Formula III:
where R is one of a benzyl, 4-methoxybenzyl, acetyl, nitro, formyl, allyl, and a carboethoxyl group.
本发明涉及合成高能化合物及其中间体的方法。具体而言,本发明涉及合成金刚烷及在此类合成中有用的中间体的方法。合成的中间体在合成双环和三环取代金刚烷中具有用途。各种中间体的示例包括:无环2-硝基马来醛中间体,2,6,9-三取代-4,8-二硝基-2,6,9-三氮杂双环[3.3.1]壬烷-3,7-二烯和2,6-二硝基-4,8,9,10-四氮杂-4,8,9,10-四取代金刚烷。根据本发明方法合成的中间体对于合成四氮杂金刚烷有用,可用作潜在优越的新高能量密度化合物(HEDCs)的前体。三环中间体化合物具有以下结构(式III):其中R是苯甲基、4-甲氧基苯甲基、乙酰基、硝基、甲酰基、烯丙基和羧乙氧基中的一种。