Results 31 to 40 of about 28,539 (273)

3-[5-(Pyridin-4-yl)-1,3,4-oxadiazol-2-yl]-4H-chromen-4-one

open access: yesIUCrData, 2016
In the title molecule, C16H9N3O3, the plane of oxadiazole ring is almost coplanar with attached pyridine ring and chromenyl ring system, forming dihedral angles of 2.37 (3) and 6.71 (2)°, respectively.
Dongsoo Koh
doaj   +1 more source

A survey of liquid crystalline oxadiazoles

open access: yes, 2008
We propose a survey of those oxadiazole compounds, which are mesogenic. We will see that they can have bend-shaped molecules, a biaxial nematic phase, or other interesting peculiarities in the nematic and smectic phase.
Sparavigna, Amelia
core   +1 more source

Investigation of Novel Benzoxazole-Oxadiazole Derivatives as Effective Anti-Alzheimer’s Agents: In Vitro and In Silico Approaches

open access: yesPharmaceuticals, 2023
Alzheimer’s disease (AD) is a progressive neurological illness that is distinguished clinically by cognitive and memory decline and adversely affects the people of old age. The treatments for this disease gained much attention and have prompted increased
Saeed Anwar   +9 more
doaj   +1 more source

Thermal behavior of polytriazole films: a thermal analysis study [PDF]

open access: yes, 1989
The thermal behavior of poly(1,3-phenyl-1,4-phenyl)-4-phenyl-1,2,4-triazole has been investigated using different scanning calorimetry (DSC) and thermogravimetry (TG).
Gebben, B.   +2 more
core   +2 more sources

In vitro antitumor and immunomodulatory activities of 1,2,4-oxadiazole derivatives

open access: yesBiochemistry and Biophysics Reports
Melanoma is the most aggressive and lethal type of skin cancer, responsible for approximately 60,000 deaths annually. The main strategy for treating melanoma is surgery to completely remove the lesion and its margins.
Héverton Mendes Araújo   +9 more
doaj   +1 more source

Synthesis, Characterization, and Biologic Activity of New Acyl Hydrazides and 1,3,4-Oxadiazole Derivatives

open access: yesMolecules, 2020
Starting from isoniazid and carboxylic acids as precursors, thirteen new hydrazides and 1,3,4-oxadiazoles of 2-(4-substituted-phenoxymethyl)-benzoic acids were synthesized and characterized by appropriate means. Their biological properties were evaluated
Irina Zarafu   +12 more
doaj   +1 more source

Engineering Nano-aggregates: β-Cyclodextrin Facilitates the Thiol-Gold Nanoparticle Self-Assembly [PDF]

open access: yesJournal of Nanostructures, 2019
The structure and morphology of nonmaterial formed by colloidal synthesis represent a subject of interest as it is a factor deciding the physicochemical properties and biological applications of nanostructures.
D Badmapriya   +2 more
doaj   +1 more source

Isosteric Substitution Enables Rational Design of Two‐Dimensional Energetic Crystals

open access: yesAdvanced Science, EarlyView.
Isosteric substitution transforms a classical nitro–amine motif into two‐dimensional aminofurazans with performance beyond TATB. ABSTRACT Two‐dimensional (2D) energetic crystals dissipate mechanical insult via interlayer slip, yet their molecular design space remains narrow.
Linyuan Wen   +6 more
wiley   +1 more source

Effect of counter-ion on packing and crystal density of 5,5′-(3,3′-bi[1,2,4-oxadiazole]-5,5′-diyl)bis(1H-tetrazol-1-olate) with five different cations

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
In energetic materials, the crystal density is an important parameter that affects the performance of the material. When making ionic energetic materials, the choice of counter-ion can have detrimental or beneficial effects on the packing, and therefore ...
Ian D. Giles   +4 more
doaj   +1 more source

Green Synthetic Approach: An Efficient Eco-Friendly Tool for Synthesis of Biologically Active Oxadiazole Derivatives

open access: yesMolecules, 2021
Green synthetic protocol refers to the development of processes for the sustainable production of chemicals and materials. For the synthesis of various biologically active compounds, energy-efficient and environmentally benign processes are applied, such
Bimal Krishna Banik   +6 more
doaj   +1 more source

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