Results 81 to 90 of about 5,960 (212)

Reactions of 1,2,4‐Oxadiazole[4,5‐a]piridinium Salts with Alcohols: the Synthesis of Alkoxybutadienyl 1,2,4‐Oxadiazoles

open access: yesChemistryOpen, 2020
1,2,4‐Oxadiazole[4,5‐a]piridinium salts add alcohols and alkoxides to undergo electrocyclic ring opening affording alkoxybutadienyl 1,2,4‐oxadiazole derivatives.
Dr. Mattia Moiola   +2 more
doaj   +1 more source

Antibacterial Activity, Structure-Activity Relationships, and Scale-Up Reaction of 1,3,4-Oxadiazoles [PDF]

open access: yes, 2022
Oxadiazoles are compounds in the field of organic chemistry that have been gathering interest in the medicinal chemistry and microbiology communities for their biological properties, which range from anti-inflammatory agents, to chemotherapy drugs, to ...
Smith, Olivia Marie
core  

Synthesis of Oxadiazole Derivatives from Terephthalic Acid

open access: yesChemistry Proceedings
Oxadiazoles, nitrogen-containing heterocycles, are attracting interest due to their promising biological activities. This study focuses on the synthesis of oxadiazole derivatives from functionalized intermediates derived from terephthalic acid, a ...
Fekih Yasmine   +2 more
doaj   +1 more source

Efficient Phosphonium-Mediated Synthesis of 2-Amino-1,3,4-oxadiazoles

open access: yes, 2016
We present an efficient, room temperature procedure for the preparation of 2-amino-1,3,4-oxadiazoles. Oxadiazol-2-ones can be activated for SNAr substitution using phosphonium reagents (e.g., BOP).
Zhao-Kui Wan (2004907)   +1 more
core   +2 more sources

Electron Ionization Induced Fragmentation of some 3-Aroylamino-5-Methyl-1,2,4- Oxadiazoles and 3-Acetylamino-5-Aryl-1,2,4-Oxadiazoles

open access: yes, 2017
Background and Objectives: 1,2,4-Oxadiazoles show a high reactivity and represent starting compounds for the synthesis of several other heterocycles. Some their derivatives can give the so called Boulton-Katritzky Reactions (BKR) which opens the way to ...
Zuppiroli, Luca   +17 more
core   +1 more source

Synthesis, characterization and antioxidant activity of 1,3,4-oxadiazoles bearing an indole ring [PDF]

open access: yes, 2019
1,3,4-oxadiazoles have been widely studied by many researchers in various fields. Due to its heterocyclic structure, 1,3,4-oxadiazoles possess of many biological and pharmacological activities such as antibacterial, anticancer, antiinflammatory ...
Kong, Kian Liang
core   +1 more source

Synthesis, Characterization and Antifungal Evaluation of 5-Substituted-4-Amino-1,2,4-Triazole-3-Thioesters

open access: yesMolecules, 2011
A series of 5-substituted-4-amino-1,2,4-triazole-3-thioesters was synthesized by converting variously substituted organic acids successively into the corresponding esters, hydrazides, 5-substituted-1,3,4-oxadiazole-2-thiols, 5-substituted-1,2,4-triazole ...
Aurangzeb Hasan   +2 more
doaj   +1 more source

Oxadiazoles as potential drugs III.

open access: yes, 2019
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Title of diploma thesis: Oxadiazoles as potential drugs III. Student: Michaela Lukáčová Supervisor: PharmDr. Marta Kučerová, Ph.D.
Lukáčová, Michaela
core  

Systematic Review on 1,2,3‐Oxadiazoles, 1,2,4‐Oxadiazoles, and 1,2,5‐Oxadiazoles in the Antimycobacterial Drug Discovery

open access: yesChemMedChem
AbstractTuberculosis remains a leading global health threat, exacerbated by the emergence of multi‐drug‐resistant strains. The search for novel therapeutic agents is critical in addressing this challenge. This review systematically summarizes the potential of oxadiazole derivatives as promising candidates in antimycobacterial drug discovery.
openaire   +2 more sources

One-Step Construction of 1,3,4-Oxadiazoles with Anticancer Activity from Tertiary Amines via a Sequential Copper(I)-Catalyzed Oxidative Ugi/aza-Wittig Reaction

open access: yesMolecules
An unparalleled copper(I)-catalyzed synthesis of 1,3,4-oxadiazoles from tertiary amines in one step has been described. The one-pot reactions involving (N-isocyanimine)triphenylphosphorane, tertiary amines, and carboxylic acids resulted in the formation ...
Mei Sun   +10 more
doaj   +1 more source

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