Results 31 to 40 of about 8,060 (204)

Synthesis and Evaluation of the Anti-Microbial Activity of New Heterocycles Containing the 1,3,4-Thiadiazole Moiety

open access: yesMolecules, 2011
A new series of thiadiazole-enaminones 4 were synthesized via reactions of 5-acetyl-1,3,4-thiadiazoles 3 with dimethylformamide-dimethylacetal (DMF-DMA).
Thoraya A. Farghaly   +2 more
doaj   +1 more source

Crystal structure of 6-(2-fluorophenyl)-3-phenyl-[1,2,4]-triazolo[3,4-b][1,3,4]thiadiazole, C15H9FN4S [PDF]

open access: yes, 2016
C15H9FN4S, orthorhombic, Pna21 (no. 33), a = 18.9361(2) Å, b = 11.5248(1) Å, c = 6.0142(1) Å, V = 1312.52(3) Å3, Z = 4, R gt (F) = 0.0263, wR ref (F 2
Al-Alshaikh, M. A.   +4 more
core   +1 more source

Synthesis of Novel 2,5-Disubstituted-1,3,4-thiadiazoles Clubbed 1,2,4-Triazole, 1,3,4-Thiadiazole, 1,3,4-Oxadiazole and/or Schiff Base as Potential Antimicrobial and Antiproliferative Agents

open access: yesMolecules, 2015
In the present study, a new series of 2,5-disubstituted-1,3,4-thiadiazole tethered 1,2,4-triazole, 1,3,4-thiadiazole, 1,3,4-oxadiazole and Schiff base derivatives were synthesized and characterized by IR, 1H-NMR, 13C-NMR, MS and elemental analyses.
Nadjet Rezki   +4 more
doaj   +1 more source

New Route Synthesis of Thiadiazoles, Bisthiadiazoles, Thiadiazolotriazines, and Pyrazolothiadiazoles Based on Hydrazonoyl Halides and Dihydrazinylthiadiazole

open access: yesMolecules, 2017
Synthesis and characterization of new thiadiazoles, bisthiadiazoles from the reaction of mono- and di-hydrazonoyl halides with various hydrazinecarbodithioate derivatives were studied.
Abdelwahed R. Sayed, Shar Saad Al-Shihry
doaj   +1 more source

Synthesis and crystal structure analysis of 2-​(4-​fluorobenzyl)​-​6-​phenylimidazo[2,​1-​b]​- [1,​3,​4]​thiadiazole and its chlorophenyl derivative [PDF]

open access: yes, 2014
Prepns. of 2-​(4-​fluorobenzyl)​-​6-​phenylimidazo[2,​1-​b]​[1,​3,​4]​thiadiazole and its chlorophenyl deriv. were described. Preliminary anal. was done spectroscopically by means of 1H NMR, 13C NMR spectra, mass spectra and elemental analyses. Further
Afshan Banu, .   +3 more
core   +1 more source

Preparation of some azo compounds by diazotization and coupling of 2- amino -5 – thiol -1,3,4- thiadizaole [PDF]

open access: yes, 2021
2- amino -5- thiol-1,3,4- thiadiazole (S1) was prepared by cyclic locking of thiosemicarbazide in the presence of anhydrous sodium carbonate and CS2. diazotization of (S1) compound gave diazonium salt (S2) that reacts with different activated aromatic ...
Dauood, Suhair S., Saleh, Mohammad M.
core   +2 more sources

Synthesis and properties of 2-(4-phenyl-5-(((5-phenylamino-1,3,4-thiadiazole-2-yl)thio)methyl)-1,2,4-triazole-3-yl)thio)ethanoic acid and its salts

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2020
Analysis of the literature over the past decade has shown that the chemistry of 1,2,4-triazole and 1,3,4-thiadiazole attracts considerable interest from scientists around the world because of the many valuable properties of compounds of this class ...
A. S. Hotsulia , S. O. Fedotov
doaj   +1 more source

Exploration of the chemistry and biological properties of pyrimidine as a privileged pharmacophore in therapeutics [PDF]

open access: yes, 2015
The pyrimidine moiety is one of the most widespread heterocycles in biologically occurring compounds, such as nucleic acids components (uracil, thymine and cytosine) and vitamin B1.
Ajani, Olayinka O.
core   +4 more sources

trans-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)

open access: yesActa Crystallographica Section E, 2011
The bidentate 1,3,4-thiadiazole ligand, namely, 2,5-bis(2-pyridyl)-1,3,4-thiadiazole (denoted L), untested as a polydentate ligand, has been found to form the monomeric title complex, [Ni(C12H8N4S)2(H2O)2](BF4)2.
Fouad Bentiss   +4 more
doaj   +1 more source

Functionalization of Silicon Surface by Thiadiazole Molecule : a DFT Study

open access: yes, 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

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