Results 31 to 40 of about 4,281 (225)

Palladium-Catalyzed Direct (Het)arylation Reactions of Benzo[1,2-d:4,5-d′]bis([1,2,3]thiadiazole and 4,8-Dibromobenzo[1,2-d:4,5-d′]bis([1,2,3]thiadiazole)

Molecules, 2023
Palladium-catalyzed direct (het)arylation reactions of strongly electron-withdrawing tricyclic benzo[1,2-d:4,5-d′]bis([1,2,3]thiadiazole) and its 4,8-dibromo derivative were studied; the conditions for the selective formation of mono- and bis-aryl ...
Timofey N. Chmovzh, Timofey A. Kudryashev, Daria A. Alekhina, Oleg A. Rakitin   +3 more
doaj   +1 more source

Antioxidant and prooxidant activity of new 1,2-diols and thiadiazoles derivatives in Saccharomyces cerevisiae yeast cells

Cumhuriyet Science Journal, 2020
The present research was undertaken to determine the effect of substituted 2,2'-[(2R,3R)-2,3-dihydroxy-1,4-dioxobutane-1,4-diyl]bis(N-R-hydrazine-1-carbothioamide and (1R,2R)-1,2-bis[5-(R-amino)-1,3,4-thiadiazole-2-yl]ethane-1,2-diols on the antioxidant ...
Ahmet Çetin, Arzu Karatepe
doaj   +1 more source

Recent Developments In Chemistry Of 1,3,4-Thiadiazoles [PDF]

, 2014
The methods of preparation, structure and biological activities of 1,3,4-thiadiazoles are ...
Mahmoud Fawzy Ismail, Mahmoud, Mahmoud Refaee, Ismail, Mahmoud Fawzy, Mahmoud Refaee Mahmoud   +3 more
core   +1 more source

Synthesis of some substituted 1,3,4-oxadiazoles, thiadiazoles and 1,2,4-triazoles [PDF]

مجلة التربية والعلم, 2009
In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. Ethyl methacrylate was treated with hydrazine hydrate in ethanol to give the corresponding hydrazide (1).
Shereen R. Mohamed
doaj   +1 more source

Electrochemical Synthesis of 1,2,3-Thiadiazoles from α‑Phenylhydrazones

, 2021
We have developed an electrochemical approach for the synthesis of fully substituted 1,2,3-thiadiazoles from α-phenylhydrazones at room temperature, which is very challenging and complementary to the conventional thermal reactions.
Pragya Pali (9143670), Priya Saha (10750110), Maya Shankar Singh (1725268), Keshav Raghuvanshi (1939177), Gaurav Shukla (2105080)   +4 more
core   +1 more source

Design and Synthesis of New Boron-Based Benzo[c][1,2,5]oxadiazoles and Benzo[c][1,2,5]thiadiazoles as Potential Hypoxia Inhibitors

Inorganics, 2023
Benzo[c][1,2,5]oxadiazoles and benzo[c][1,2,5]thiadiazoles are recognized to possess potent pharmacological activities including anticancer potential. In continuation of our research endeavors in the development of boron-based heterocycles as potential ...
Sasmita Das, Mohammed Adil Shareef, Bhaskar C. Das   +2 more
doaj   +1 more source

Direct synthesis of fused 1,2,5-selenadiazoles from 1,2,5-thiadiazoles

, 2020
A short and convenient synthesis of fused 1,2,5-selenadiazoles from the corresponding 1,2,5-thiadiazoles and selenium dioxide has been ...
Woollins, J. Derek, Camacho, Paula S., Zibarev, Andrey V., Ashbrook, Sharon E. M., Nefyodov, Andrey A., Rakitin, Oleg A., Knyazeva, Ekaterina A., Konstantinova, Lidia S.   +7 more
core   +2 more sources

Multicomponent Coupling Reactions of Two N‑Tosyl Hydrazones and Elemental Sulfur: Selective Denitrogenation Pathway toward Unsymmetric 2,5-Disubstituted 1,3,4-Thiadiazoles

, 2016
A copper-mediated, three-component reaction between two different N-Ts hydrazones and elemental sulfur was developed, leading to a series of unsymmetric 2,5-disubstituted 1,3,4-thiadiazoles in moderate yields with good functional group compatibility ...
Jiangfei Chen (1446982), En Yao (3182790), Zhen Zhou (184390), Jiang Cheng (1446988), Yang Liu (4829)   +4 more
core   +1 more source

The Acid and/or Thermal Mediated Ring Contraction of 4H‑1,2,6-Thiadiazines To Afford 1,2,5-Thiadiazoles

, 2016
A near-quantitative acid and/or thermal mediated ring contraction of 3′,5′-diarylspiro­(benzo­[d]­[1,3]­dioxole-2,4′-[1,2,6]­thiadiazines) affords 3-aryl-4-(2-arylbenzo­[d]­[1,3]­dioxol-2-yl)-1,2,5-thiadiazoles.
Andreas Kourtellaris (1693780), Panayiotis A. Koutentis (1278807), Andreas S. Kalogirou (1546180)   +2 more
core   +1 more source

An overview of structurally diversified anticonvulsant agents

Acta Pharmaceutica, 2019
There are several limited approaches to treat epilepsy in hospitals, for example, using medicines, surgery, electrical stimulation and dietary interventions.
Al-Otaibi Faisal
doaj   +1 more source