SYNTHETIC ROUTES TOWARDS TETRAZOLIUM AND TRIAZOLIUM DINITROMETHYLIDES
DOI:
https://doi.org/10.1007/8411Keywords:
nitrolic acid, oxadiazole, tetrazolium-5-dinitromethylide sodium salt, X-Ray structureAbstract
Tetrazolium-5-dinitromethylide sodium salt has been prepared (91%) by cyclization of 1-amino-1-hydrazino-2,2-dinitroethene with nitrous acid in water. 5-Imino-1-(hydroxy-
iminonitromethyl)-derivatives were obtained by nitration of 2-(5-amino-1,3-dimethyl-1H-1,2,4-triazol-4-ium-4-yl)- and 2-(5-amino-4-methyl-1H-tetrazolium-1-yl)acetate complex salts. Treatment of 4-methyl-1-(2-oxopropyl)-1-tetrazolium methylsulfate with nitric and sulfuric acid gave methyl (3-nitro-1,2,4-oxadiazol-5-yl)amine (27%) probably via dinitromethylide followed by cyclization and loss of nitrogen.
How to Cite
Katritzky, A. R.; Sommen, G. L.; Gromova, A. V.; Witek, R. M.; Steel, P. J.; Damavarapu, R. Chem. Heterocycl. Compd. 2005, 41, 111. [Khim. Geterotsikl. Soedin. 2005, 127.]
For this article in the English edition, see DOI 10.1007/s10593-005-0116-5