2-nitroguanidine derivatives: VIII. Synthesis and cyclizations of N′1,N′2-bis(N 2- nitrocarbamimidoyl) dicarboxylic acid dihydrazides and ethyl [2-(N 2-nitrocarbamimidoyl)-hydrazino](oxo)acetate
作者:E. L. Metelkina、T. A. Novikova
DOI:10.1007/s11178-005-0091-4
日期:2004.12
New methods of synthesis of N′1,N′2-bis(N 2-nitrocarbamimidoyl) dicarboxylic acid dihydrazides and ethyl [2-(N 2-nitrocarbamimidoyl)hydrazino](oxo)acetate from 1-methyl-2-nitro-1-nitrosoguanidine and dicarboxylic acid hydrazides were proposed. Cyclization of N′1, N′2-bis(N 2-nitrocarbamimidoyl) dihydrazides derived from malonic and succinic acids afforded the corresponding bis(3-nitroamino-1,2,4-triazol-5-yl)-alkanes, while N′1,N′ 2-bis(N 2-nitrocarbamimidoyl)oxalohydrazide gave rise to previously unknown 5,5′-bi-(3-nitroamino-1,2,4-triazole) salts. Heating of ethyl [2-(N 2-nitrocarbamimidoyl)hydrazino](oxo)acetate in water in the presence of alkali metal hydroxides or carbonates resulted in intramolecular ring closure with formation of 5(3)-nitroamino-1,2,4-triazole-3(5)-carboxylic acid or ethyl 5(3)-nitroamino-1,2,4-triazole-3(5)-carboxylate, respectively. Depending on the conditions, ethyl [2-(N 2-nitrocarbamimidoyl)hydrazino](oxo)-acetate reacted with nitrogen-containing nucleophiles (ammonia, hydrazine hydrate, aniline, and phenylhydrazine) to give linear of cyclic products.
提出了从 1-甲基-2-硝基-1-亚硝基胍和二羧酸酰肼合成 N′1,N′2-双(N 2-硝基氨基甲酰亚胺基)二羧酸二酰肼和[2-(N 2-硝基氨基甲酰亚胺基)酰肼](氧代)乙酸乙酯的新方法。由丙二酸和琥珀酸衍生的 N′1、N′2-双(N 2-硝基氨基甲酰亚胺基)二肼环化得到了相应的双(3-硝基氨基-1,2、4-三唑-5-基)烷烃,而 N′1,N′2-双(N 2-硝基氨基甲酰亚胺基)草酰肼则产生了以前未知的 5,5′-双(3-硝基氨基-1,2,4-三唑)盐。在碱金属氢氧化物或碳酸盐存在下,在水中加热[2-(N 2-硝基氨基甲酰亚胺基)肼](氧代)乙酸乙酯会导致分子内环闭合,分别形成 5(3)-硝基氨基-1,2,4-三唑-3(5)-羧酸或 5(3)-硝基氨基-1,2,4-三唑-3(5)-羧酸乙酯。根据条件的不同,[2-(N 2-硝基氨基甲酰亚胺基)肼](氧代)-乙酸乙酯与含氮亲核物(氨、肼水合物、苯胺和苯肼)发生反应,生成线性环状产物。