New discoveries in chemical research and development in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. 1455-77-2, name is 3,5-Diamino-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Formula: C2H5N5
To a solution of 54.2 g (0.786 mol) of sodium nitrite in63.3 mL water at -10 to -5 °C, we added a solution of 8 g(0.081 mol) of DAT in 169.5 mL 1.2 mol/L sulfuric acid for1.5 h, the reaction mixture was heated up to 60 °C and stirredfor another 1 h, then cooled the reaction mixture to roomtemperature. 26.9 mL 6 mol/L sulfuric acid and 4.7 g (0.048mol) aminosulfuric acid were added to reaction system andstirred for another 0.5 h, extracted with 90 × 5 mL of ether,dried with magnesium sulfate and the solvent was removedunder reduced pressure and 7.89 g yellow oil 3,5-dinitro-1,2,4-triazole (DNT) was obtained with a yield of 61.4 percent. 1H NMR(DMSO-d6, 500 MHz), d: 6.424 (s, 1H, NH); 13C NMR(DMSO-d6, 125 MHz), d: 162.56; IR (KBr, nmax, cm-1), 3224(-NH-), 1659, 1382 (-NO2); Anal. calcd for C2H3N5O5: C 13.57,N 39.55, H 1.71; found C 13.73, N 38.91, H 2.13; MS (m/z):159 [M+].
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Reference:
Article; Li, Ya-Nan; Liu, Ning; Su, Peng-Fei; Wang, Ying-Lei; Ge, Zhong-Xue; Li, Hui; Wang, Bo-Zhou; Asian Journal of Chemistry; vol. 26; 21; (2014); p. 7151 – 7156;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics