نتایج جستجو برای: 4 triazole

تعداد نتایج: 1306986  

Journal: :ScienceRise 2021

The aim of the work. 1,2,4-triazole derivatives possess a wide range pharmacological activity, so they are used for development drugs and active pharmaceutical ingredients. Due to reactivity 1,2,4-triazoles there many options their further structural modification on different reaction centers. Therefore, work was obtain new S-substituted 1,2,4-triazole-3-thiols, study physicochemical parameters...

Journal: :Acta Crystallographica Section E Structure Reports Online 2007

2009
Bobby Happ Richard Hoogenboom Andreas Winter Martin D. Hager Stefan O. Baumann Guido Kickelbick Ulrich S. Schubert

In the crystal structure of the title compound, C(17)H(12)N(4), the angle between the naphthalene and 1H-1,2,3-triazole ring systems is 71.02 (4)° and that between the pyridine and triazole rings is 8.30 (9)°.

A series of 2-(4-nitro-1-imidazolylmethyl)-1,3,4-oxadiazole, 1,3,4-triazole and 3-(4-nitro-1-imidazolylmethyl)-1,2,4-triazole derivatives were synthesized and tested for their antimicrobial activity. Some of the tested compounds were active against Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis, Clostridium difficile, Aspergillus niger and Cryptococcus neoformans.

Journal: :Dalton transactions 2013
Verónica Gómez Vanesa Lillo Eduardo C Escudero-Adán Eddy Martin José Ramón Galán-Mascarós

We have developed a water-based synthesis for the preparation of 4-substituted 1,2,4-triazole ligands with highly polar functional groups. This general synthetic approach has allowed us to prepare two sulfonate functionalized 4-substituted 1,2,4-triazole anions ( L1(-)= 4-(1,2,4-triazol-4-yl)benzenesulfonate; L2(-)= 4-(1,2,4-triazol-4-yl)ethanesulfonate). Reaction of these ligands with cadmium(...

Journal: :Journal of the American Chemical Society 2005
Zhen Zhou Siwen Li Yuelan Zhang Meilin Liu Wen Li

We report 1H-1,2,3-triazole as an active group to dramatically enhance proton conduction in a polymer electrolyte membrane (PEM). The conductivities of a poly(4-vinyl-1H-1,2,3-triazole) membrane without any acidic dopants are about 105 times greater than those of poly(4-vinylimidazole) in dry air at 50-150 degrees C. Polymers with groups promoting proton conduction attached to the backbone have...

2010
Zakirjon Karimov Ibrakhim Abdugafurov Samat Talipov Bakhodir Tashkhodjaev

In the title compound, C(15)H(12)N(4)O(2), the dihedral angle between the planes of the nicotino-yloxy fragment and triazole ring is 88.61 (5)°. The dihedral angle between the planes of triazole and benzene rings is 16.54 (11)°. The crystal structure is stabilized by inter-molecular C-H⋯N, C-H⋯O and C-H⋯π(triazole) hydrogen bonds and aromatic π-π stacking inter-actions between the benzene and t...

Journal: :Bioorganic & medicinal chemistry 2015
Elisabeth Nagaradja Ghenia Bentabed-Ababsa Mathieu Scalabrini Floris Chevallier Stéphanie Philippot Stéphane Fontanay Raphaël E Duval Yury S Halauko Oleg A Ivashkevich Vadim E Matulis Thierry Roisnel Florence Mongin

1-Aryl- and 2-aryl-1,2,3-triazoles were synthesized by N-arylation of the corresponding azoles using aryl iodides. The deprotometalations of 1-phenyl-1,2,3-triazole and -1,2,4-triazole were performed using a 2,2,6,6-tetramethylpiperidino-based mixed lithium-zinc combination and occurred at the most acidic site, affording by iodolysis the 5-substituted derivatives. Dideprotonation was noted from...

2011
Xiu-Zhi Xu Zhu-Lai Li Wen-Jin Yan Hui-Li Chi

The title coordination polymer, [CdBr(2)(C(8)H(8)N(4))(2)](n), arose from a layer-separated diffusion synthesis at room temperature. The title compound is isotypic with the I and Cl analogues. The Cd atom, located on an inversion center, is coordinated by two bromide ions and four N atoms (two from triazole rings and two from pyridyl rings) in a distorted trans-CdBr(2)N(4) octa-hedral arrangeme...

2009
Zhu-Lai Li Jian Wang Xiu-Zhi Xu Xiao Ye

The title coordination polymer, [CuCl(2)(C(8)H(8)N(4))(2)](n), arose from a layer-separated diffusion synthesis at room temperature. The Cu atom (site symmetry ) is coordinated by two chloride ions and four N atoms (two from triazole rings and two from pyridyl rings) in a distorted trans-CuCl(2)N(4) octa-hedral arrangement. The bridging 1-(4-pyridylmeth-yl)-1H-1,2,4-triazole ligands [dihedral a...

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