关键词: 2-氨基-6-羟基-3,5-二硝基吡啶, 2-氨基-6-氯-3,5-二硝基吡啶, 2,6-二氯-3-硝基吡啶, 聚对苯亚乙基吡啶并咪二唑, 水解, 合成

Abstract: As a key intermediate for poly (p-phenylene-2-pyridinoimidazol-6-oxazole),2-amino-6- chloro-3,5-dinitropyridine(ACDNP) with 95.60% and the total yield of 41% was obtained from 2,6-dichloropyridine by nitration,ammonolysis and nitration. 2-Amino-6-hydroxy- 3,5-dinitropyridine (AHDNP) was prepared from ACDNP in potassium carbonate solution at 70℃. The purity of AHDNP was 82.07% and the total yield of AHDNP is 98.13% after re-crystallization. AHDNP was identified by FT-IR,MS and ¹³C NMR. This process for AHDNP synthesis has advantages of simple operation procedure,excellent product quality,good economy and easy industrialization etc.,which provides convenience for further development of PPIO and other high-performance materials.

Key words: 2-amino-6-hydroxy-3,5-dinitropyridine, 2-amino-6-chloro-3,5-dinitropyridine, 2,6- dichloro-3-nitropyridine, ploy(p-phenylene-2-pyridoimidazol-6-oxazole)(PPIO), hydrolysis, synthesis