nitration of the corresponding mononitro furans with fuming nitric acid, thiophenes with acetyl nitrate, and thiazoles with trifluoroacetyl nitrate, gave dinitro-substituted furans, thiophenes, and thiazoles. The nitrations of 2-alkylthiophenes with 3 and 5 molar equivalents of acetyl nitrate, generated in situ, are discussed. Reactions of the mononitro furans with fuming nitric acid gave 1,1,5,5-tetrasubstituted
A safe and scalable process for the synthesis of melt-cast explosive 1-methyl-3,5-dinitro-1H-1,2,4-triazole
作者:Jin Luo、Yu-Cun Liu、Yan Liu、Jian-Hua Wang
DOI:10.1007/s10593-017-2114-9
日期:2017.6
our procedure is generation of target compound by catalytic oxidation of 3,5-diamino-1-methyl-1,2,4-triazole nitrate with hydrogenperoxide at 65 to 70°C. The main advantage of our procedure is the use of modified catalytic oxidation system and improved reagentaddition method, which enabled proper control of the reaction exotherm in a 2-l reactor. After solvent extraction, 1-methyl-3,5-dinitro-1H-1
从双氰胺和甲基肼开始,描述了一种改进的安全的生产1-甲基-3,5-二硝基-1 H -1,2,4-三唑的方法,这是一种有前途的熔铸炸药来代替TNT。我们过程中的关键步骤是在65至70°C下用过氧化氢催化氧化3,5-二氨基-1-甲基-1,2,4-三唑硝酸盐生成目标化合物。我们程序的主要优点是使用改进的催化氧化系统和改进的试剂添加方法,从而可以正确控制2-l反应器中的反应放热。萃取溶剂后,获得纯度高达92.5%(HPLC)的1-甲基-3,5-二硝基-1 H -1,2,4-三唑,总产率为43%。1-甲基-3,5-二硝基-1 H的改进修饰使用羧甲基纤维素钠盐作为表面活性剂,制备了熔点较低的-1,2,4-三唑。
Reactions of 3-azido-1,2,4-triazole with electrophiles
作者:T. P. Kofman、K. N. Krasnov
DOI:10.1007/s11178-005-0074-5
日期:2004.11
Alkylation of 3-azido-1,2,4-triazole with oxiranes, bromoacetone, and methyl vinyl ketone furnished a mixture of N-substituted 3- and 5-azido-1,2,4-triazoles, 3-azido compounds prevailing. The same substrate subjected to heterylation with 3,5-dinitro-1,2,4-triazole derivatives reacted selectively at the N1 atom, and its bromination afforded 3-azido-5-bromo-1,2,4-triazole..