Results 161 to 170 of about 14,929 (209)

Synthesis of new 4,5-substituted 4H-1,2,4-triazole-3-thiols and their sulfanyl derivatives

Russian Journal of General Chemistry, 2015
Reaction of hydrazides of 4-alkoxybenzoic acids with benzyl isothiocyanate followed by cyclization with thiosemicarbazide afforded a series of new 4,5-substituted 4H-1,2,4-triazole-3-thiols. S-Alkylation of the latter led to the formation of the corresponding 4,5-substituted sulfanyl derivatives of 4H-1,2,4-triazoles.
M. A. Kaldrikyan, N. S. Minasyan, R. G. Melik-Ogandzhanyan   +2 more
openaire   +1 more source

Convenient synthesis of 4H-1,2,4-triazole-3-thiols using di-2-pyridylthionocarbonate

Tetrahedron Letters, 2007
We report here the convenient synthesis of 4H-1,2,4-triazole-3-thiols using di-2-pyridyl-thionocarbonate as the thiocarbonyl transfer reagent. This method is suitable for microplate parallel synthesis and produces samples in screening-ready condition. It uses two large sets of building-blocks: amines and hydrazides.
Rebecca F. Deprez-Poulain, Julie Charton, Virginie Leroux, Benoit P. Deprez   +3 more
openaire   +1 more source

Regioselectivity of the reaction of 4H-1,2,4-triazole-3-thiol derivatives with chloroethynylphosphonates and structure of the products

Russian Journal of Organic Chemistry, 2013
Chloroethynylphosphonates reacted with 4H-1,2,4-triazole-3-thiols in anhydrous acetonitrile to afford fused heterocyclic compounds, 6-(dialkoxyphosphoryl)-3H-thiazolo[3,2-b][1,2,4]triazol-7-ium chlorides, with high regioselectivity. The products were converted into inner salts (zwitterions) of the corresponding phosphonic acids or their monoesters with
E. B. Erkhitueva, A. V. Dogadina, A. V. Khramchikhin, B. I. Ionin   +3 more
openaire   +1 more source

Synthesis and Optical Properties of New S-Derivatives of 5,5′-(1,4-Phenylene)bis(4H-1,2,4-triazole-3-thiol) and 5,5′,5″-(Benzene-1,3,5-triyl)tris(4H-1,2,4-triazole-3-thiol)

Russian Journal of General Chemistry, 2019
A simple one-pot synthetic method for novel S-alkenyl and propargyl derivatives of 5,5′-(1,4-phenylene)-bis(4H-1,2,4-triazole-3-thiol) and 5,5′,5″-(benzene-1,3,5-triyl)tris(4H-1,2,4-triazole-3-thiol) has been developed. Absorption and luminescence properties of the synthesized compounds have been estimated, and the fluorescence quantum yields have been
E. S. Il’inykh, D. G. Kim, M. S. Valova, O. V. Fedorova   +3 more
openaire   +1 more source

Silver(i) and Lead(ii) Halide Compounds with 4-Methyl-1,2,4-triazole-3-thiol

Australian Journal of Chemistry, 2011
Four novel silver(i) and lead(ii) halide compounds with the 4-methyl-1,2,4-triazole-3-thiol (Hmptrz) ligand, namely [Ag2(mptrz)(µ3-X)]n (X = I (1) and Br (2)) and [Pb4(µ4-O)(mptrz)4(µ2-X)2] (X = I (3) and Cl (4)), have been synthesized and characterized.
Yu-Ling Wang, Yun-Liang Jiang, Qing-Yan Liu, Jia-Jia Wei, Li-Qin Li   +4 more
openaire   +1 more source

ChemInform Abstract: Oxidation of 4‐Amino‐5‐aryl‐4H‐1,2,4‐triazole‐3‐thiols.

ChemInform, 2011
AbstractA simple and efficient method for the preparation of triazolesulfonic acids (II) is presented.
A. A. Shklyarenko, A. V. Moskvin, E. V. Fedorova   +2 more
openaire   +1 more source

Optimization of pyrazole-based compounds with 1,2,4-triazole-3-thiol moiety as selective COX-2 inhibitors cardioprotective drug candidates: Design, synthesis, cyclooxygenase inhibition, anti-inflammatory, ulcerogenicity, cardiovascular evaluation, and molecular modeling studies.

Bioorganic chemistry (Print), 2021
Khaled R. A. Abdellatif, Eman K. A. Abdelall, H. A. Elshemy, John N. Philoppes, Emad H. M. Hassanein, Nesma M. Kahk   +5 more
semanticscholar   +1 more source

ChemInform Abstract: Synthesis of Novel 1,3‐Substituted 1H‐[1,2,4]‐Triazole‐3‐thiol Derivatives.

ChemInform, 2010
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Karine A. Eliazyan, Lusya V. Shahbazyan, Vergine A. Pivazyan, Emma A. Ghazaryan, Aleksandr P. Yengoyan   +4 more
openaire   +1 more source

ChemInform Abstract: Highly Regioselective Heterocyclization Reactions of 1H‐1,2,4‐Triazole‐3‐thiols with Chloroacetylenephosphonates.

ChemInform, 2012
AbstractThe process takes place with high regioselectivity to produce fused heterocyclic chlorides (III).
Elena B. Erkhitueva, Albina V. Dogadina, Andrey V. Khramchikhin, Boris I. Ionin   +3 more
openaire   +1 more source

ChemInform Abstract: Synthesis and Antimicrobial Activity of New 1,2,4‐Triazole‐3‐thiol Metronidazole Derivatives.

ChemInform, 2010
AbstractNovel metronidazole‐substituted 1,2,4‐triazole‐3‐thiole derivatives (III) and (IV) respectively are prepared and tested for their antiparasitic, cytotoxic, antibacterial, and antifungal activity.
Haythem A. Saadeh, Ibrahim M. Mosleh, Amal G. Al‐Bakri, Mohammad S. Mubarak   +3 more
openaire   +1 more source