Results 31 to 40 of about 6,703 (220)

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

Polyterthiophenes incorporating 3,4-difluorothiophene units : application in organic field-effect transistors [PDF]

, 2010
Two terthiophenes bearing core fluorinated thienyl units have been synthesised as potential semiconductor materials for organic field-effect transistors.
Crouch, David J., Heeney, Martin, McCulloch, Iain, Skabara, Peter, Sparrowe, David   +4 more
core   +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

Functionalization of Silicon Surface by Thiadiazole Molecule : a DFT Study

, 2018
The first principles density functional theory (DFT) calculations have been used to investigate the atomic and electronic properties of thiadiazole adsorption on the Si(001) surface.
Kaderoglu, Cagil
core   +1 more source

The [4+2]‐Cycloaddition of α‐Nitrosoalkenes with Thiochalcones as a Prototype of Periselective Hetero‐Diels–Alder Reactions—Experimental and Computational Studies [PDF]

, 2020
The [4+2]‐cycloadditions of α‐nitrosoalkenes with thiochalcones occur with high selectivity at the thioketone moiety of the dienophile providing styryl‐substituted 4H‐1,5,2‐oxathiazines in moderate to good yields.
Boger D. L., Carruthers W., Corey E. J., Fleming I., Huisgen R., Huisgen R., Reissig H.-U., Warren S., Zweifel G. S.   +8 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

3-{[6-(4-Chlorophenyl)imidazo[2,1-b][1,3,4]thiadiazol-2-yl]methyl}-1,2-benzoxazole [PDF]

, 2011
In the title compound, C18H11ClN4OS, the benzisoxazole and imidazothiadiazole rings are inclined at an angle of 23.81 (7)degrees with respect to each other. The imidazothiadiazole and chlorophenyl rings make a dihedral angle of 27.34 (3)degrees.
Banu, A., Ziaulla, M., Begum, N.S., Lamani, R.S., Khazi, I.M.   +4 more
core   +1 more source

Synthesis and Diuretic Activity of Substituted 1,3,4-Thiadiazoles

Scientifica, 2022
1,3,4-Thiadiazole nuclease, a 5-membered heterocyclic ring system containing two nitrogen and one sulfur atoms in addition to carbon atoms, is compound that showed promising results in the process of searching new diuretic agents. In this study, seven 5-
Asrat Ergena, Yerra Rajeshwar, Gebremedhin Solomon   +2 more
doaj   +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

Heterocyclizations based on N-(R-hydrazine-1-carbonothioyl)cycloalkancarboxamides: functionalized azoles and their antimicrobial activity

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2022
Synthesis and structural modification of azoles remains an important area of medical chemistry and allows to obtain new compounds with a wide range of biological activity.
О. V. Kholodniak, Yu. V. Shubina, S. I. Kovalenko   +2 more
doaj   +1 more source