Results 61 to 70 of about 12,947 (217)
Synthesis and Antimicrobial Evaluation of Some New Oxadiazoles Derived from Phenylpropionohydrazides
In this study a series ofnew1-(2-aryl-5-phenethyl-1,3,4-oxadiazol-3(2H)-yl)ethanones 2a-e was synthesized by the cyclization of imines 1a-e using acetic anhydride. The products were evaluated for anti-bacterial and anti-fungal activity.
Mohammad Ali +3 more
doaj +1 more source
Síntese de novos mesógenos derivados do heterocíclo imidazo[2,1-b][1,3,4]tiadiazol [PDF]
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.A síntese de seis novas moléculas derivadas do heterociclo imidazo[2,1-b][1,3,4]tiadiazol foram realizadas a partir da construções de ...
Ferraz Neto, José
core
Síntese de cristais líquidos fotoluminescentes derivados do heterociclo 1,3,4-Oxadiazol [PDF]
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemática. Programa de Pós-Graduação em QuímicaA síntese, propriedades fotofísicas e térmicas de duas séries de compostos líquido cristalinos fotoluminescentes
Cristiano, Rodrigo
core
Synthesis and Antineoplastic Evaluation of Novel Unsymmetrical 1,3,4-Oxadiazoles
A series of novel 1,3,4-oxadiazoles was synthesized and evaluated for their cytotoxic activity in in vitro tumor models. Four of the new compounds (2d, 2j, 2k, and 2n) showed growth inhibition in the XTT dye assay.
Giansalvo Pinna (3367052) +7 more
core +1 more source
Breast cancer is the most frequently diagnosed malignancy and a leading cause of cancer‐related mortality among women worldwide. Triple‐negative breast cancer (TNBC) poses a major clinical challenge due to its aggressive nature, limited therapeutic options, and high propensity for drug resistance.
Lara Luzietti +9 more
wiley +1 more source
Expeditious synthesis of 1,3,4-oxadiazole derivatives via sydnones [PDF]
The clean cyclization of chalcones (1a-c/2a-c) with hydrazine hydrate under microwave irradiation afforded pyrazolines derivatised with sydnone (3d-i/4d-i), which underwent 1,3-dipolar cyclo-addition with acetic anhydride to form pyrazolines appended ...
Kamble Ravindra R. +2 more
doaj +3 more sources
Selective alkylation of 5-(p-aminophenyl)-1,3,4-oxadiazol-2(3H)-thione with alkyl halides have been studied. It was revealed that alkylation goes on more polarized thiogroup in position 2 and corresponding 2-alkylthio-1,3,4-oxadiazoles were obtained in ...
D Ismailova +5 more
doaj +2 more sources
Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi +13 more
wiley +1 more source
New 5-(2-thienyl)-1,2,4-triazoles and 5-(2-thienyl)-1,3,4-oxadiazoles namely, N-[3-mercapto-5-(2-thienyl)-1,2,4-triazol-4-yl]-N'-arylthioureas 4a–e, 2-arylamino-5-(2-thienyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles 5a–e, 3-arylaminomethyl-5-(2-thienyl ...
Mohamed A. Al-Omar
doaj +1 more source
Multifunctional Oxadiazole‐Based Polycatenars: A Pathway to Polar Columnar Phases
Aromatic core fluorination directs oxadiazole‐based polycatenars into ferroelectric and antiferroelectric columnar phases with supergelation and photo‐responsiveness. ABSTRACT Polar columnar liquid crystals (LCs) offer a promising pathway to nanostructured architectures for next‐generation ferroelectric devices.
Yu Cao +7 more
wiley +1 more source

