Synthesis of 5-Substituted N-Nitro-2,4-dihydro-3H-1,2,4-triazol-3-imines
摘要:
The reaction of N-amino-N ''-nitroguanidine with carboxylic acid chlorides at room temperature gave the corresponding N-(N ''-nitroguanidino)carboxamides which underwent cyclization on heating in aqueous alkali to affordN-nitro-1,2,4-triazol-3-imines. The latter were also synthesized in a one-pot fashion. The products were characterized by H-1 and C-13-{H-1}, IR, and UV spectra.
New representatives of nitroamine-containing 1,2,4-triazoles: Synthesis and structure
作者:T. P. Efimova、O. Yu. Ozerova、T. A. Novikova、I. V. Belik、V. M. Berestovitskaya
DOI:10.1134/s1070363213090259
日期:2013.9
The interaction of 1-methyl-1-nitroso-2-nitroguanidine with carboxylic acid hydrazides results in formation of N-(2-nitroguanidino)amides that easily give 3(5)-nitroamino-5(3)-alkyl(aryl)-1,2,4-triazoles under refluxing in aqueous alkaline medium. We have developed a one-pot method to prepare such heterocyclic structures; the synthesis of one of the sample compound has given an example of the method applicability. The compounds structures have been confirmed by UV, IR, H-1, and C-13-H-1} NMR spectroscopy.
2-Nitroguanidine Derivatives. New Synthesis of 5(3)-Substituted 3(5)-Nitroamino-1,2,4-triazoles
作者:E. L. Metelkina、T. A. Novikova
DOI:10.1023/b:rujo.0000036089.08617.1c
日期:2004.4
Synthesis of 5-Substituted N-Nitro-2,4-dihydro-3H-1,2,4-triazol-3-imines
作者:O. Yu. Ozerova、T. P. Efimova、T. A. Novikova
DOI:10.1134/s1070363220080046
日期:2020.8
The reaction of N-amino-N ''-nitroguanidine with carboxylic acid chlorides at room temperature gave the corresponding N-(N ''-nitroguanidino)carboxamides which underwent cyclization on heating in aqueous alkali to affordN-nitro-1,2,4-triazol-3-imines. The latter were also synthesized in a one-pot fashion. The products were characterized by H-1 and C-13-H-1}, IR, and UV spectra.