[7-(二烷基氨基)[1,2,4]三唑并[4,3- a ]-[1,3,5]三嗪-5的钾盐反应而不是预期的二硝基甲基上的C-烷基化-yl](二硝基)甲烷化物与烯丙基和苄基溴在三唑环的 N-1 和 N-2 原子上发生烷基化,形成两性离子(二硝基)([1,2,4]三唑并[4,3- a [1,3,5]三嗪-1(2)-鎓-5-基)甲烷化物,其在1,2,4-三唑环的氮原子上带有正电荷,其上连接有烷基取代基,和负电荷位于二硝基甲基上。产物的结构是根据NMR谱和X射线结构分析数据确定的。获得的实验结果与量子化学计算的结果非常吻合。
Synthesis and structure elucidation of novel 5-dinitromethyl-7-alkylamino-1,2,4-triazolo[4,3-a]-1,3,5-triazines
摘要:
Synthesis of the novel potassium salts of 5-dinitromethyl-7-alkylamino-1,2,4-triazolo[4,3-a]-1,3,5-triazines 9a-c was performed by heating (in DMSO) 2-alkylamino-4-ethoxymethylidenehydrazino-6-dinitromethyl-1,3,5-triazines 8a-c, obtained by treating of the corresponding 2-alkylamino-4-hydrazino-6-dinitromethyl-1,3,5-triazines 5a-c with orthoformic ester. 2-Alkylamino-4-hydrazino-6-dinitromethyl-1,3,5-triazines were obtained by a sequential substitution of the methoxy groups of the potassium salt of 2,4-dimethoxy-6-dinitromethyl-1,3,5-triazine with an alkylamine (dimethylamine, morpholine, pyrrolidine) and hydrazine. (C) 2013 Elsevier Ltd. All rights reserved.