作者:Eric C. Coad、Jeff Kampf、Paul G. Rasmussen
DOI:10.1021/jo960828x
日期:1996.1.1
Synthesis of 1-methyl-2-fluoro-4,5-dicyanoimidazole was done by halogen exchange between 1-methyl-2-bromo-4,5-dicyanoimidazole and potassium fluoride. Halogen exchange between 1-methyl-2-bromo-4,5-dicyanoimidazole and lithium chloride in N-methylpyrrolidinone at 150 degrees C yielded 1-methyl-2-chloro-4,5-dicyanoimidazole, and additional heating to 210 degrees C resulted in the demethylation to yield
通过1-甲基-2-溴-4,5-二氰基咪唑与氟化钾之间的卤素交换来完成1-甲基-2-氟-4,5-二氰基咪唑的合成。N-甲基吡咯烷酮中的1-甲基-2-溴-4,5-二氰基咪唑与氯化锂在150°C之间进行卤素交换,生成1-甲基-2-氯-4,5-二氰基咪唑,并进一步加热至210°C在脱甲基中产生2-氯-4,5-二氰基咪唑。发现在100至290摄氏度之间热解2-卤代4,5-二氰基咪唑衍生物(F,Cl)和1-碘-2-卤代4,5-二氰基咪唑衍生物(Cl,Br,I) Tris(咪唑)[1,2-a:1,2-c:1,2-e] -1,3,5-三嗪-2,3,5,6,8,9-己腈或HTT (C(5)N(4))(3)组成。对HTT进行了表征和纯化,并获得了晶体结构。在490-500摄氏度下热分解HTT,得到的材料的C / N = 1.020。HTT及其分解产物的热性能显示其在350摄氏度下的热稳定性。