Results 121 to 130 of about 12,853,470 (222)

Studies on the Synthesis and Optical Properties of Novel Blue Light-Emitting Polymers Containing Phosphorus and Oxadiazole Structures

open access: yes, 2012
[[abstract]]Novel phosphorus-containing polymers with high-electron-affinity oxadiazole were synthesized and characterized by thermal analysis and spectroscopy (infrared, ultraviolet-visible, photoluminescence, cyclic voltammetry) measurements. These new
Yih-Min Sun;Albert Y. C. Hung;Chih-Ta Wang
core  

Synthesis and Antibacterial Activity of New Hybrid Molecules Containing 1,3,4-Thiadiazole and 1,3,4-Oxadiazole Bearing Ibuprofen Moiety

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences
A series of novel hybrid molecules containing 1,3,4-oxadiazole and 1,3,4-thiadiazole moieties bearing an ibuprofen moiety were designed, synthesized, and evaluated for their in vitro antibacterial activity against Gram-positive and Gram-negative ...
Rusul K. Fadhel Fadhel   +1 more
doaj   +1 more source

Syntheses of Poly(1, 2, 4-oxadiazole)-Polyimides

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1967
Toshiyuki SHONO   +3 more
openaire   +2 more sources

A thermal fragmentation of 1,2,4-oxadiazole-4-oxides to nitriles and nitrosocarbonyls

open access: yes, 2000
1,2,4-Oxadiazole-4-oxides undergo clean thermal cleavage in refluxing chlorobenzene or xylene to nitriles and nitrosocarbonyl intermediates, which are either trapped with suitable olefins to afford ene adducts or dimerize and rearrange to ...
CARAMELLA, PIERLUIGI   +3 more
core  

Synthesis and Characterization of some New 1,3,4-Oxadiazole derivatives based on 4-amino benzoic acid [PDF]

open access: yes
Various of 2,5- disubstituted 1,3,4-oxadiazole (Schiff base, ?- lactam and azo) were synthesized from 2,5-di (4,4?-amino-1,3,4-oxadiazole which usequently synth-esized from mixture of 4- amino benzoic acid and hydrazine arch of polyphosphorus acid.
Hamed, Bushra K.   +2 more
core   +1 more source

1, 3, 4-Oxadiazole: A Versatile Compound With Potent Analgesic Activity

open access: yes
Oxadiazole is a heterocyclic ring with 5 members that has 1 oxygen atom, 2 nitrogen atoms, 2 double bonds, and 2 carbons. In furan, they are created by placing two methylene groups (=CH) for two nitrogen (-N=) atoms. The aromaticity was reduced by the substitution of these groups. There were four different isomer of oxadiazole that were identified: 1,3,
openaire   +1 more source

A Review On: Antifungal And Antibacterial Activity Of 1, 3, 4-Oxadiazole Derivatives

open access: yes
1,3,4-Oxadiazoles are five-membered heterocyclic compounds containing two nitrogen atoms and one oxygen atom. These versatile molecules exhibit a range of biological effects, including antibacterial, antifungal, and antiviral properties. Recent research has demonstrated that many 1,3,4-oxadiazole derivatives surpass the activity of existing antibiotics
openaire   +2 more sources

Synthesis and Antibacterial Activity of Some Novel Schiff S-Bases Compounds Containing Oxadiazole Ring

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2019
Condensation of 4-methoxybenzoyl hydrazine with 4- aminobenzoic acid in the presence of POCl3 gave the oxadiazole derivative [III] .This compound was demethylated with aluminium chloride to give series of 2- (4-hydroxy phenyl)-5-(4-amino phenyl) 1,3 ...
J. H. Tomma, A. H. Raheema, I. H. Rouil
doaj  

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