Laus, Gerhard published the artcileSynthesis and crystal structures of new 1,4-disubstituted 1,2,4-triazoline-5-thiones, Recommanded Product: 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, the main research area is triazolinothione preparation crystal structure.
The simple synthesis of sulfur into the 5-position of 1,4-disubstituted quaternary 1,2,4-triazolium salts by two methods was investigated. The syntheses of 1,4-disubstituted 1,2,4-triazoline-5-thiones I (R1 = CH3, NH2, N(CH3)2, OCH2C6H5; R2 = CH3, CH(CH3)2, NH2, etc.) were reported. Thermolysis of I (R1 = R2 = CH3) in air gave 1,4-dimethyl-1,2,4-triazolium hydrogen sulfate. Crystal structures of I were determined by single-crystal X-ray diffraction. Intermol. hydrogen bonds (C-H-S, C-H-N, N-H-N, N-H-S) were observed in the solid state. The solvent-dependent 1H NMR chem. shifts of signals satisfactorily correlated with the Kamlet-Abboud-Taft π* and β parameters in ten solvents. From the lack of correlation with the α parameter and from the C:S bond length (average 1.67°), a significant contribution of a mesoionic imidazolium-2-thiolate resonance structure seems unlikely.
Zeitschrift fuer Naturforschung, B: A Journal of Chemical Sciences published new progress about Bond length. 39602-93-2 belongs to class triazoles, name is 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, and the molecular formula is C3H7IN4, Recommanded Product: 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide.
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics