Results 81 to 90 of about 9,297,922 (227)

Electrophilic Iodination of Heterocyclic Compounds. Recent Advances 2008–2025: Part II

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
Electrophilic iodination using molecular iodine and iodide sources represents an efficient approach for accessing valuable iodinated organic compounds. This review highlights recent advances in the iodination of heterocyclic compounds from 2008 to 2025, emphasizing the role of heteroaryl iodides as important synthetic intermediates for biologically ...
Njomza Ajvazi, Stojan Stavber
wiley   +1 more source

Synthesis of N-[{5-Aryl-1,3,4-oxadiazole-2-yl}methyl]-4-methoxyaniline Derivatives and Their Anticonvulsant Activity

open access: yesJournal of Chemistry, 2013
A series of some new 2,5-disubstituted-1,3,4-oxadiazoles 4(a–i) have been conveniently synthesized by intramolecular oxidative cyclization of (E)-2-(arylbenzylidene)-2-[(4-methoxyphenyl)amino]acetohydrazides promoted by iodobenzene diacetate as an ...
B. N. Prasanna Kumar   +2 more
doaj   +1 more source

Synthesis of new 2-amino-1,3,4-oxadiazole derivatives with anti-salmonella typhi activity evaluation

open access: yesBMC Chemistry, 2020
Reaction of phenyl acetic acid derivatives with thiosemicarbazide in the presence of POCl3 afforded 5-(4-bromobenzyl)-1,3,4-oxadiazole-2-amine 1 and 5-(3-nitrophenyl)-1,3,4-oxadiazole -2-amine 2.
Eid E. Salama
doaj   +1 more source

Incorporation of an Extended Electron‐Deficient Central Block Into Small‐Molecule Acceptors Toward Enhanced‐Performance Organic Solar Cells

open access: yesAggregate, Volume 7, Issue 6, June 2026.
Two novel extended electron‐deficient central cores (Tz‐Qx, Dz‐Qx) with F/Cl‐substituted terminal groups synergistically optimize small molecule acceptors. Tz‐Qx‐4F outperforms Dz‐Qx‐based counterparts, achieving 19.50% PCE (29.3 mA cm−2 JSC) when blended with D18, thus providing valuable insights for designing high‐performance organic solar cell ...
Lan Xie   +10 more
wiley   +1 more source

Development of new methods for the synthesis of pyrazoles, 4-iodopyrazoles, isoxazoles and 1,2,4-oxadiazoles [PDF]

open access: yes, 2011
Synthesis of five-membered heteroaromatic compounds such as pyrazoles, isoxazoles and 1,2,4-oxadiazoles are important for pharmaceutical industry and material science due to their applications.
ARİF KIVRAK
core  

Synthesis of N, N΄3, 4-Dialkylamino-1, 2, 5-Oxadiazoles [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2003
N, N΄-3, 4-di(methylamino)-1, 2, 5-oxadiazole (1f) was prepared by dehydration of N, N΄-3, 4-di(methylamino)glyoxime (2f) in aqueous potassium hydroxid at 170-180 ˚C. Under similar conditions N, N΄-3, 4-di(benzylamino)-1, 2, 5-oxadiazole (1c) and N, N΄-3,
Ali Kakanejadifardi   +2 more
doaj  

A Facile Method for the Synthesis of 6-Aryl-1-(3-Chloropropanoyl)-4-[(E)-1-(2-Furyl)Methylidene)]-1,2,3,4-Tetrahydro-3-Pyridazinones and 2-(2-Chloroethyl)-5-[α-Aracyl-β-(2-Furyl)]-(E)-Vinyl-1,3,4-Oxadiazoles

open access: yesMolecules, 2000
The 6-aryl-1-(3-chloropropanoyl)-4-[(E)-1-(2-furyl)methylidene)]-1,2,3,4-tetrahydro-3-pyridazinones (6a-d) were synthesized by the reaction of acid chloride 3 with α-aracyl(β-2-furyl)acrylic acid hydrazides (2a-d) in a high yield, one pot reaction.
Ahmed I. Hashem, Abdel-Sattar S. Hamad
doaj   +1 more source

Synthesis of Dendrimers Containing 1,3,4-Oxadiazoles [PDF]

open access: yes, 2016
Synthesis of Dendrimers Containing 1,3,4 ...
Wim Dehaen (496141)   +1 more
core   +1 more source

2,5-Disubstituted 1,3,4-Oxadiazole Derivatives as Effective Inhibitors for the Corrosion of Mild Steel In 2M H3PO4 Solution

open access: yesInternational Journal of Electrochemical Science, 2012
The influence of three oxadiazole derivatives on the corrosion inhibition of steel in 2M H3PO4 solution is studied using weight-loss and electrochemical polarisation measurements.
M. Benabdellah   +6 more
doaj   +1 more source

Unveiling a Redox‐Assisted Electrocatalysis Approach for Efficient Azo‐Based High‐Energy Material Synthesis

open access: yesSusMat, Volume 6, Issue 3, June 2026.
A redox‐assisted electrocatalysis strategy is proposed for efficient synthesis of azo‐based energetic material 3,3′‐diamino‐4,4′‐azofurazan (DAAzF). The well‐designed Ni‒Co3O4@CC catalyst enables high‐efficiency electro‐oxidation of DAF and cyclic regeneration of Ce3+/Ce4+ redox pair.
Zilong Cao   +10 more
wiley   +1 more source

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