申请人:The United States of America as represented by the Secretary of the Navy
公开号:US04061658A1
公开(公告)日:1977-12-06
2,5-Dipicrylfurans of the formula ##STR1## wherein R.sub.1 and R.sub.2 vary independently and are select from the gp consisting of H and NO.sub.2. Unsubstituted 2,5-dipicrylfuran (R.sub.1 = R.sub.2 = H) is prepared by reacting a picryl halide with a 2,5-dihalofuran. Unsubstituted 2,5-dipicrylfuran may be nitrated under selected conditions to produce either 2,5-dipicryl-3-nitrofuran (R.sub.1 = NO.sub.2, R.sub.2 = H) or 2,5-dipicryl-3,4-dinitrofuran (R.sub.1 = R.sub.2 = NO.sub.2). The 2,5-dipicrylfurans of this invention are energetic explosives possessing high thermal stability.
该公式为##STR1##的2,5-二硝基呋喃,其中R.sub.1和R.sub.2独立变化,并且从H和NO.sub.2中选择。通过将硝基苯酚卤化物与2,5-二卤呋喃反应制备未取代的2,5-二硝基呋喃(R.sub.1 = R.sub.2 = H)。未取代的2,5-二硝基呋喃可以在选择的条件下硝化,产生2,5-二硝基-3-硝基呋喃(R.sub.1 = NO.sub.2,R.sub.2 = H)或2,5-二硝基-3,4-二硝基呋喃(R.sub.1 = R.sub.2 = NO.sub.2)。本发明的2,5-二硝基呋喃是具有高热稳定性的高能炸药。