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1.
A. N. Gusev V. F. Shul’gin I. N. Shcherbakov K. A. Lysenko V. V. Minin I. L. Eremenko 《Russian Journal of Coordination Chemistry》2017,43(1):37-43
Two new copper(II) complexes with 1,3-bis(5-(pyridin-2-yl)-1,2,4-triazol-3-yl)propane (H2L), [Cu2(HL)Cl3] · H2O (I) and [Cu(H2L)](ClO4)2 (II), were described. The compounds were characterized by elemental analysis, IR spectroscopy, and magnetochemical data. According to X-ray diffraction data (CIF files CCDC nos. 1497511 (I), 1497512 (II)), complex I is binuclear and the metal cations are bound by the nitrogen atoms of the triazole ring and by the chloride anion. Complex II is mononuclear. Analysis of the temperature dependence of the magnetic susceptibility of I attests to the antiferromagnetic coupling of paramagnetic centers (–2J = 18 cm–1). Exchange channels are analyzed by means of density functional theory (B3LYP/6-311G(d)) using the broken symmetry approach. 相似文献
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V. M. Chernyshev A. V. Chernysheva V. A. Taranushich 《Russian Journal of Applied Chemistry》2009,82(2):276-281
The influence of the molar ratio and concentration of the reactants and of the temperature and time of the synthesis on the yield of malonic acid guanylhydrazides in the reaction of aminoguanidine with malonic acid in acidic aqueous solutions was examined, and improved procedures for preparing 5-amino-1,2,4-triazol-3-ylacetic acid and bis(5-amino-1,2,4-triazol-3-yl)methane were suggested. 相似文献
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T. V. Shokol V. A. Turov A. V. Turov N. V. Krivokhizha V. V. Semenyuchenko V. P. Khilya 《Chemistry of Heterocyclic Compounds》2005,41(11):1411-1418
The condensation of 4-phenyl-1,2,4-triazol-3-ylacetonitrile with 2-methyl-, 4-ethylresorcinol, and with pyrogallol gave α-(4-phenyl-1,2,4-triazol-3-yl)-2,4-dihydroxyacetophenones.
Upon treatment with acid anhydrides and chlorides and subsequent hydrolysis these form 7-hydroxy-3-(4-phenyl)-1,2,4-triazol-3-yl)chromones
with different substituents in both the benzene and the pyrone rings.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1676–1684, November, 2005. 相似文献
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Four compounds have been synthesized and characterized by1H NMR spectroscopy and elemental analyses, among which 1-(4,5-dihydro-3-phenyl-pyrazol-1-yl)-2-(1H-1,2,4-triazol-1-yl)ethanone 3a was further confirmed by X-ray crystallographic analysis. The biological activities of these compounds were tested, with the result that they displayed moderate fungicidal activities. In addition, a MO calculations using density functional theory (DFT) at B3LYP/6-31G* level have also been carried out, and the structure–activity relationships for these compounds are discussed. 相似文献
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Summary Iron(III), cobalt(II), nickel(II), copper(II) and zinc(II) complexes of 1,1-bis(-4-phenyl-5-mercapto-1,2,4-triazol-3-yl)propane were prepared. Their structures were elucidated by spectral studies, magnetic susceptibility measurements and elemental analyses. The complexes were also evaluated for their fungicidal and seed germination activity. 相似文献
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G. I. Tsypin T. F. Sharamet T. A. Kravchenko M. S. Pevzner 《Chemistry of Heterocyclic Compounds》1980,16(2):199-201
1-(1,2,4-Triazol-3-yl)-1,2,3-triazoles were obtained by 1,3-dipolar cycloaddition of 3-azido-1,2,4-triazole to acetylene derivatives.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 262–264, February, 1980. 相似文献
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A solution-phase synthesis for the preparation of substituted 2-(1,2,4-triazol-3-yl)benzimidazoles from triazole aldehydes and ortho-phenylenediamines has been developed for the purpose of producing diverse lead generation libraries. Crude products were obtained and further purified by mass-guided preparative HPLC. 相似文献
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Barmin M. I. Chekrenev S. A. Kartavykh V. P. Mel'nikov V. V. 《Russian Journal of General Chemistry》2003,73(3):482-487
Procedures for synthesis of coordination compounds of copper(II) with bis(5-amino-1,2,4-triazol-3-yl)alkanes as ligands. A conclusion was drawn that the coordination polyhedron of copper(II) has different configurations depending on the structure of the ligand and on the coordination mode. 相似文献
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In this paper new heterocyclic compounds 5-[(1,1-dimethyl)ethyl]-3-aryl-(1H-1,2,3-triazol-1-yl)-5-isoxazolidinols were obtained by the reaction of vinyl triazole derivatives with hydrox-ylamine hydrochloride under the action of sodium carbonate.The biological tests indicate that they had plant-growth regulating activity. 相似文献
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《Journal of Coordination Chemistry》2012,65(3):501-508
Two new cadmium(II) complexes [Cd1.5(L)Cl2(H2O)]2 n (1) and [CdL2] n (2) with a multidentate N-donor building block 3-(pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole (HL) have been prepared and characterized by elemental analysis, infra-red spectra, powder X-ray diffraction (XRD), and single-crystal XRD. 1 is a 2-D layered coordination polymer constructed from linkage of [Cd3(μ-Cl)4] trinuclear units with HL spacers, while 2 shows a 2-D layer structure. 3-D supramolecular architectures are further assembled in 1 and 2 via hydrogen-bonding contacts. Both 1 and 2 are thermally stable to 450?°C, and 2 showed strong fluorescent emission bands. 相似文献
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The title compound 2-(3-methyl-5-(methylthio)-4H-1,2,4-triazol-4-yl)isoindoline-1,3-dione(C12H10N4O2S, Mr = 274.30) has been synthesized by a three-step procedure including the cyclization, hydrazinolysis and substitution reactions, and its crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P21/c with a = 12.264(3), b = 14.646(3), c = 14.349(4) , β = 91.69(3)°, μ = 0.255 mm-1, Mr = 274.30, V = 2576.2(10) 3, Z = 8, Dc = 1.414 g/cm3, F(000) = 1136, R = 0.0487 and w R = 0.1329 for 4048 observed reflections with Ⅰ 2σ(Ⅰ). In addition, the preliminary bioassay suggested that the title compound 6 exhibits relatively good antitumor activity against HT-29 and MCF-7. 相似文献
15.
Godovikova T. I. Vorontsova S. K. Konyushkin L. D. Firgang S. I. Rakitin O. A. 《Russian Chemical Bulletin》2010,59(2):483-485
A number of 3-methyl-4-(5-R-1H-1,2,4-triazol-3-yl)-1,2,5-oxadiazoles were obtained in high yields by thermal dehydration of acylated 4-methyl-1,2,5-oxadiazole-3-carboxamide
hydrazones. 相似文献
16.
LIUFa-qian QINYong-qi LIWei-hua YANGShuang-hua LULu-de YANGXu-jie 《高等学校化学研究》2005,21(3):280-283
The title compound, 2-(methoxybenzoyl)-N-phenyl-2-(1,2,4-triazol-l-yl) thioacetamide was synthesized by several reactions from 4-methoxyacetophenone, triazole and phenyl isothiocyanate. The structure was identified by elemental analysis, ^1H NMR, MS and IR. The single crystal structure of 2-(methoxybenzoyl)-N-phenyl-2-(1,2,4-triazol-l-yl)thioacetamide was determined withX-ray diffraction. The preliminary bioassays show that the title compound exhibits weak antifungal activities and plant-growth regulatory activity. 相似文献
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Shul’gin V. F. Pevzner N. S. Kiskin M. A. Ugolkova E. A. Minin V. V. 《Russian Journal of Coordination Chemistry》2019,45(11):795-798
Russian Journal of Coordination Chemistry - The new complex [Cu4L2(H2AEDP)2(H2O)4] · 34H2O was prepared by the reaction of CuSO4 with bis(2-pyridyl-1,2,4-triazol-3-yl)butane (H2L) and... 相似文献