Results 101 to 110 of about 18,084 (219)

Simulation of structure and electronic spectra of 1,3,4-oxadiazole chromophores. [PDF]

, 2017
Simulation of Structure and Electronic Spectra of 1,3,4-oxadiazole ...
Gaižiūnas, Ignas,
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Synthesis, Characterization, and Cytotoxicity Assessment of Novel S- Naproxen- based 1,3,4-Oxadiazole Thioethers against A549 Lung Carcinoma

Al-Mustansiriyah Journal of Pharmaceutical Sciences
Novel S-naproxen- 1,3,4-oxadiazole derivatives were developed and synthesized. via a multi-step route. The synthesis began with conversion of S-(+)-naproxen to an ethyl ester, followed by hydrazide formation and cyclization to yield a 1,3,4-oxadiazole-2-
Farooq Mohammed Hassan, Ayad Kareem Khan, Shakir Mahmood Alwan, Mohammad M. Al-Akaidi   +3 more
doaj   +1 more source

An Efficient and Convenient Protocol for the Synthesis of Optically Active 1,2,4-Triazolo-[3,4-b]-[1,3,4]-Thiadiazole, 1,3,4-Oxadiazole and 1,3,4-Thiadiazole Derivatives having L-Amino Acid Moieties [PDF]

, 2015
A series of novel bis triazolothiadiazole, 1,3,4-oxadiazole and 1,3,4-thiadiazole derivatives attached to L-amino acid moieties were synthesized in good yields using a simple and practical method.
Mobinikhaldei, A, Ebrahimi, S, Foroughifar, N, Mozafari, R   +3 more
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Revisiting the Formation Mechanism of 1,3,4-Oxadiazole-2(3H)‑ones from Hydrazonyl Chloride and Carbon Dioxide

, 2018
The reaction mechanism for the synthesis of 1,3,4-oxadiazole-2­(3H)-ones from hydrazonyl chloride and CO2 in the presence of CsF/18-crown-6 and toluene, is revisited via density functional theory computations.
Jorge Barroso (3594497), Fernando Murillo (5365844), Gustavo Ávila (5860646), Sudip Pan (1542133), Gabriel Merino (1413124), María A. Fernández-Herrera (1413115), María G. de los Santos (5860643)   +6 more
core   +1 more source

A facile one-pot synthesis of N α-Z/Boc-protected S-linked 1,3,4-oxadiazole tethered peptidomimetics

, 2012
A new class of S-linked 1,3,4-oxadiazole-tethered N α- protected peptidomimetics is designed and synthesized by a reaction of N α-Z/Boc-protected 1,3,4-oxadiazole-2-thiol with α-bromo ester derived from amino acid.
Vasantha, B., Sureshbabu, V.V., Nagendra, G.   +2 more
core   +1 more source

Synthesis, Bioactivities, and Antibacterial Mechanism of 5‑(Thioether)‑N‑phenyl/benzyl-1,3,4-oxadiazole-2-carboxamide/amine Derivatives

1,3,4-Oxadiazole thioethers have shown exciting antibacterial activities; however, the current mechanism of action involving such substances against bacteria is limited to proteomics-mediated protein pathways and differentially expressed gene analysis ...
Zengxue Wu (2629240), Zhongjie Shen (14316779), Hongfu He (2939421), Baoan Song (162306), Awei Zhang (4242703), Ronghua Wang (1834945), Runjiang Song (3091920)   +6 more
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A Highly Efficient Diversification of 2‑Amino/Amido-1,3,4-oxadiazole and 1,3,4-Thiadiazole Derivatives via Reagent-Based Cyclization of Thiosemicarbazide Intermediate on Solid-Phase

, 2015
A 2-amino/amido-1,3,4-oxadiazole and 1,3,4-thiadiazole library has been constructed on solid-phase organic synthesis. The key step on this solid-phase synthesis involves the preparation of polymer-bound 2-amino-1,3,4-oxadiazole and 1,3,4-thiadiazole core
Ji-Hye Choe (1463143), Seung-Ju Yang (1463140), Young-Dae Gong (1463149), Aizhan Abdildinova (1463146)   +3 more
core   +1 more source

New electron-transporting materials for light emitting diodes: 1,3,4-oxadiazole-pyridine and 1,3,4-oxadiazole-pyrimidine hybrids

, 2002
We describe the synthesis of three new isomeric 1,3,4-oxadiazole-pyridine hybrids, namely: 2,6-, 3,5- and 2,4-bis[2-(4-tert-butylphenyl)-1,3,4-oxadiazol-5-yl] pyridine, (PDPy-2,6, PDPy-3,5 and PDPy-2,4, respectively) and a 1,3,4-oxadiazole-pyrimidine ...
Wang, CS, Petty, MC, Bryce, MR, Batsanov, AS, Jung, GY   +4 more
core   +2 more sources

Synthesis of some new 2, 5-disubstituted 1,3,4-oxadiazole derivatives and their biological activity

, 2003
900-9042-(Coumarin-3-y l)-5-aryl-1,3,4-oxadiazole derivatives 3-5 have been synthesised by condensing hydrazide 2 of 3-carbethoxycoumarin with various aromatic acids.
Akhtar, M, M. S. Y. Khan, Khan, M S Y, M. Akhtar   +3 more
core   +1 more source

Synthesis and molecular properties of new poly(naphthalene-1,3,4-oxadiazole)s

, 1997
Poly[(1,4-naphthalene)-2,5-diyl-1,3,4-oxadiazole] and poly[(2,6-naphthalene)-2,5-diyl-1,3,4-oxadiazole] have been synthesized and investigated in conc.
Strelina, Irina A., Schulz, Burkhard, Okatova, Olga V., Lavrenko, Peter N.   +3 more
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