68301-12-2Relevant academic research and scientific papers
Cationic Iridium Complexes with 5-Phenyl-1 H-1,2,4-triazole Type Cyclometalating Ligands: Toward Blue-Shifted Emission
Wang, Xiaoxiang,Wang, Shirun,Pan, Fangfang,He, Lei,Duan, Lian
, p. 12132 - 12145 (2019)
Four cationic iridium complexes with 5-phenyl-1H-1,2,4-triazole (phtz) type cyclometalating ligands (C^N) and different ancillary ligands (N^N), namely, [Ir(dphtz)2(bpy)]PF6 (1), [Ir(dphtz)2(pzpy)]PF6 (2), [Ir(M
REACTION OF AMIDRAZONIUM IODIDES WITH β-DIKETONES
Khrustalev, V. A.,Solod, O. V.,Zelenin, K. N.
, p. 444 - 453 (2007/10/02)
The condensation of amidrazonium iodides with β-dicarbonyl compounds leads to salts which exist in solutions as tautomeric mixtures of the linear and cyclic forms.The position of the equilibrium depends largely on structural factors.Thermolysis of the salts is accompanied by elimination of the carbonyl compound and the formation of the corresponding 1,2,4-triazolium iodide.Alkaline treatment of the condensation products gives the free bases, which are tautomeric mixtures of the hydrazone and enehydrazine forms in solutions.The thermodynamic parameters ΔH0 and ΔS0 of the equilibrium were determined.
SYNTHESIS AND STRUCTURE OF 1-METHYL-2,3-DIHYDRO-1,2,4-TRIAZOLIUM SALTS AND THEIR FREE BASES
Pinson, V. V.,Khrustalev, V. A.,Zelenin, K. N.,Matveeva, Z. M.
, p. 1170 - 1176 (2007/10/02)
1-Methyl-2,3-dihydro-1,2,4-triazolium iodides can be obtained by reacting methylhydrazones with S-methylthioamide hydriodides, by condensing 2-methylamidrazone hydriodides with aldehydes and ketones, or by reacting methyl iodide with 1-alkylidene(or arylidene)benzamidrazones.In solutions these salts are capable of undergoing tautomerism to 1-alkylidene(or arylidene)-2-methylamidrazone hydriodides.The influence of the structural factors on the position of the tautomeric equilibrium has been studied.The free bases obtained by neutralization of the respective salts by an alkali metal hydroxides are heretofore underscribed 1-alkylidene(or a rylidene)-2-methylhydrazidoimines or 4-triazolines, depending on their structure.Under the action of oxygen, these compounds are readily oxidized to substituted 1-methyl-1,2,4-triazoles with heating.
