New synthesis of 2,6-diamino-3,5-dinitropyrazine-1-oxide from 2,6-diaminopyrazine-1-oxide
申请人:Pagoria Philip F.
公开号:US20090299067A1
公开(公告)日:2009-12-03
A method for the synthesis of 2,6-Diamino-3,5-dinitropyrazine-1-oxide including nitration of 2,6-diaminopyrazine-1-oxide. The step of nitration may use nitrating agents 20% Oleum/100% HNO3, 100% HNO3 and conc. H2504/100% HNO3 or nitronium tetrfluoraoborate. The synthesis of 2,6-diaminopyrazine-1-oxide may involve both the oxidation of 2,6-diaminopyrazine, the amination of a precursor 2,6-disubstitutedpyrazine-1-oxide or direct formation of the 2,6-diaminopyrazine-l-oxide from the precursor, 2-amino-6-hydroxamino-pyrazine-1-oxide.
一种合成2,6-二氨基-3,5-二硝基吡嗪-1-氧化物的方法,包括对2,6-二氨基吡嗪-1-氧化物进行硝化。硝化步骤可使用硝化剂20%油酸/100%硝酸,100%硝酸和浓H2504/100%硝酸或硝基四氟硼酸盐。2,6-二氨基吡嗪-1-氧化物的合成可以涉及2,6-二氨基吡嗪的氧化、前体2,6-二取代吡嗪-1-氧化物的氨基化或直接从前体2-氨基-6-羟肟基吡嗪-1-氧化物形成2,6-二氨基吡嗪-1-氧化物。