Results 61 to 70 of about 12,849,117 (223)

Microwave Irradiation Promoted Reactions of Orthoesters with Carboxylic Acid Hydrazides. Preparation of 1,3,4-Oxadiazoles [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1997
Rapid and highly efficient synthesis of 2- or 2,5-substituted 1,3,4-oxadiazoles by the condensation of aryl carboxylic acid hydrazides and orthoesters can be achieved under microwave irradiation using an unmodified commercial over in unsealed vessels.
Mohammad Sadegh Khajavi, Seyed Saheb Sadat Hosseini, Fatemeh Sefidkon   +2 more
doaj  

A Handy and Solventless Direct Route to Primary 3-[3-Aryl)-1,2,4-oxadiazol-5-yl]propionamides Using Microwave Irradiation

Molecules, 2006
A one-step, simple and straightforward synthesis of the title amides from the corresponding carboxylic acids, urea and imidazole under microwave irradiation is described.
Rajendra M. Srivastava, Ricardo A.W. Neves   +1 more
doaj   +1 more source

IBX/KI promoted synthesis of 2, 5-disubstituted 1, 3, 4-oxadiazoles

, 2018
Background: Oxadiazoles are privileged scaffolds in different areas of medicinal, pesticidal, polymer and material science. They act as anticancer, benzodiazepine receptor agonists, antimicrobial, analgesic, diuretic and tyrosinase inhibitors etc.
Khan P.R., Reddy S.G., Hussein I.A., Reddy G.R., Durgaprasad M., Reddy B.V.S.   +5 more
core   +1 more source

Nature‐Derived Chitosan Biopolymer: A Promising Candidate for Sustainable Electronics

Advanced Materials Technologies, Volume 11, Issue 19, 7 October 2026.
In the creation of environmentally friendly devices, nature‐derived chitosan biopolymer is a promising contender for sustainable electronic research. It can be utilized to create more ecologically friendly scalable gadgets and has a variety of uses in different active layers of electronics.
Joshua McDonald, Ali Nawaz, Amandeep Singh, Prashant Sonar   +3 more
wiley   +1 more source

Development of Benzothiophene–Bearing Bis–oxadiazole Derivatives for Potential Anticancer Targets: Evaluation of DFT, ADME–Tox, and In Silico Docking

Chemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Innovative synthesis of a novel benzothiophene–based bis–oxadiazole derivatives. The structural characterization was performed using experimental and theoretical methods. Significant anticancer activity against selected cancer cell lines. Three derivatives showed good activity 7b, 7g and 7i with IC50 values 7.5 ± 1.04 and 9.5 ± 1.01 µg/mL.
Nagaraju Madala, Vishal Sharma, Srilalitha Vinnakota   +2 more
wiley   +1 more source

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

BMC 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

Integrated Experimental, Chemometric, and In Silico Analyses of Larvicidal Supercritical Extracts From Myrtaceae Species Against Aedes aegypti

Chemistry &Biodiversity, Volume 23, Issue 10, October 2026.
The cross‐validated regression tree showed modest predictive performance. Mortality was not significantly associated with the first two PCA axes. Molecular modeling generated testable ligand–target hypotheses. Psidium cattleianum had lower LD50. The larvicidal activity of the crude extracts could not be attributed to individual constituents.
Ubiratan Alegransi Bones, Regiane Chiamente Pessetti, Gilberto Diniz Cozzer, Iuri Raiel Giacomelli, Maike Valentim Buzatto, Walter Antônio Roman Junior, Renan de Souza Rezende, Jacir Dal Magro, Vanessa da Silva Corralo   +8 more
wiley   +1 more source

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

Journal 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, K. N. Mohana, L. Mallesha   +2 more
doaj   +1 more source

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

International 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, B. Hammouti, A. Warthan, S.S. Al-Deyab, C. Jama, M. Lagrenée, F. Bentiss   +6 more
doaj   +1 more source

Imidazo[1,2‐b]Pyrazole‐1,2,4‐oxadiazole Linked 1,2,3‐Triazoles: Synthesis, Antibacterial, Biofilm, and In Silico Studies

Chemistry &Biodiversity, Volume 23, Issue 10, October 2026.
A collection of innovative imidazo[1,2‐b]pyrazole–1,2,4‐oxadiazole–1,2,3‐triazole hybrids was conceived via the molecular hybridization of bioactive pharmacophores and produced via a CuAAC methodology. The synthesized compounds exhibited strong antibacterial and antibiofilm properties against gram‐positive bacteria.
Suresh Kumar Murahari, Kavitha Siddoju
wiley   +1 more source