Results 191 to 200 of about 2,851 (224)

ChemInform Abstract: Synthesis of 1,2,4‐Triazole‐3‐thiols and Their S‐Substituted Derivatives.

ChemInform, 2010
AbstractNew triazolethiols (IV) are synthesized via alkali‐mediated cyclization of 1,4‐disubstituted thiosemicarbazides (III).
T. V. Kochikyan, M. A. Samvelyan, V. S Arutyunyan, A. A. Avetisyan, R. A. Tamazyan, A. G. Aivazyan   +5 more
openaire   +1 more source

Detection of aldehydes with 4‐amino‐5‐hydrazino‐1,2,4‐triazole‐3‐thiol as spray reagent

Lipids, 1973
AbstractA spray reagent of 4‐amino‐5‐hydrazino‐1,2,4‐triazole‐3‐thiol, 2% in aqueous 1N NaOH, was used for the detection of aldehydes on chromatograms of lipids. Purple spots are produced with aldehydes, and 1 μg of palmitaldehyde can be detected easily on thin layer chromatograms.
C H, Rahn, H, Schlenk
openaire   +2 more sources

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

Mechanism of 4‐methyl‐1,2,4‐triazol‐3‐thiole reaction with formaldehyde. A DFT study

Journal of Physical Organic Chemistry, 2007
AbstractContrary to the typical nucleophilic substitution, occurring on the sulfur atom of 4‐methyl‐1,2,4‐ triazol‐3‐thiole, the reaction with formaldehyde leads to the formation of the NC bond rather than the SC bond. The mechanism of this reaction has been characterized theoretically.
Monika Wujec, Piotr Paneth
openaire   +1 more source

Corrosion Inhibition of Copper in Seawater by 4-Amino-4H-1,2,4-Triazole-3-Thiol

Corrosion, 2012
Corrosion inhibition of copper in clean and sulfide-polluted salt water by 4-amino-4H-1,2,4-triazole-3-thiol (ATATH) was investigated. Potentiodynamic and potentiostatic polarization tests were performed. The effect of temperature and sulfide concentration was addressed.
F.M. Al Kharafi, I.M. Ghayad, R.M. Abdallah   +2 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

Synthesis of 5-Ferrocenyl-4-Phenyl-4H-1,2,4-Triazole-3-Thiol and Its Derivatives

Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 1994
Abstract A ferrocenyl thiosemicarbazide was prepared by treatment of ferrocene carboxylic acid hydrazide with phenylisothiocyanate. Cyclization of the thiosemicarbazide gave the 4,5-disubstituted-4H-1,2,4-triazole-3-thiol. Alkylation of 4,5-disubstituted- 4H-1,2,4-triazole-3-thiol with methyl iodide and propyl iodide as alkylating agents led to its ...
Wu Hui, Zhang Yulan, Hu Youhong, Wu Shaozu   +3 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

Syntheses of some novel and symmetrical bis(4-amino-4H-1,2,4-triazole-3-thiols)

Journal of Sulfur Chemistry, 2012
A series of bis(4-amino-4H-1,2,4-triazole-3-thiols) 3a–e were prepared by condensation reactions of 2,2′-(phenylmethylene)bis(sulfanediyl)diacetic acids 2a–e with thiocarbohydrazide. The starting diacid 2a–e was prepared by reactions of aromatic aldehydes 1a–e with 2-mercaptoacetic acid.
Sattar Ebrahimi, Masoomeh Sayadi
openaire   +1 more source