Results 41 to 50 of about 4,593 (180)

Biological activities of imidazo[2,1-b][1,3,4]thiadiazole derivatives: A review

Journal of Saudi Chemical Society, 2016
Imidazo[2,1-b][1,3,4]thiadiazole heterocycle was discovered during the 1950s. Since then, many newer derivatives are being developed and evaluated for their biological profiles. The derivatives of imidazo[2,1-b][1,3,4]thiadiazoles are widely explored for
Bhoomendra A. Bhongade, Sirajunisa Talath, Ravikiran A. Gadad, Andanappa K. Gadad   +3 more
doaj   +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

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

Extending El Sayed's Rule by 1(n,π*)–3(n,π*) Rotation via Intramolecular Secondary Interaction Enables Room‐Temperature Circularly Polarized Phosphorescence in Solution

Angewandte Chemie, EarlyView.
Weak but skilled: Our results highlight the crucial role of intramolecular secondary interactions to induce an efficient ISC between formally identical 1(n,π*) and 3(n,π*) states in chiral thionated phthalimide derivatives. This unprecedented type of inter‐system crossing (ISC) extends the usual thinking of the El‐Sayed principle and enables the ...
Oscar Charpentier, Marie Guesdon, Catherine Demangeat, Maher Hojorat, Joseph Young, Emrys W. Evans, Vincent Dorcet, Nicolas Galland, Denis Jacquemin, Ludovic Favereau   +9 more
wiley   +2 more sources

Electrochemical Synthesis of 1,2,3-Thiadiazoles from 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, Priya Saha (10750110), Maya Shankar Singh, Gaurav Shukla, Maya Shankar Singh (1725268), Pragya Pali, Keshav Raghuvanshi, Keshav Raghuvanshi (1939177), Gaurav Shukla (2105080)   +9 more
core   +1 more source

Thiadiazoles. III*. Some 5-Substituted Derivatives of 2-Amino-1,3,4-Thiadiazoles and Some Mesoionic 1,3,4-Thiadiazoles [PDF]

, 1971
New derivatives of 1,3,4-thiadiazoles with potential phytohormonic (compds. I-V) and antibacterial (compds. VI-IX) activity have been prepared.
D. Kolbah, Kuftinec, J., J. Kuftinec, Kolbah, D.   +3 more
core   +2 more sources

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

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

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

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