Results 41 to 50 of about 12,853,470 (222)

Synthesis of a series of novel tetra-tert-butylcalix[4]arene linked to 1,2,4-triazole and 1,3,4-oxadiazole derivatives

open access: yesActa Chimica Slovenica, 2016
A series of tetra-tert-butylcalix[4]arene linked to 1,2,4-triazole-5-thiones and 1,3,4-oxadiazole-5-thiones derivatives at lower rim were synthesized by the reaction of 1,2,4-triazole-5-thione and 1,3,4-oxadiazole-5-thione  with 5,11,17,23-tetra-tert ...
Karim Akbari Dilmaghani   +1 more
doaj   +1 more source

A Modular Synthesis of C5‐Sulfenyl Thiazoles via an Intermolecular Pummerer Rearrangement: An Underexplored Scaffold for Medicinal Chemistry

open access: yesAngewandte Chemie, Volume 138, Issue 41, 5 October 2026.
Modular access to underexplored C5‐sulfenyl thiazoles via an intermolecular Pummerer rearrangement is reported. The methodology exhibits a broad functional group tolerance enabling the seamless design of trisubstituted thiazole cores bearing a sulfur handle for further elaboration.
Joe L. Smy   +5 more
wiley   +2 more sources

Total Synthesis of Anhydrolycorinone Utilizing Sequential Intramolecular Diels−Alder Reactions of a 1,3,4-Oxadiazole

open access: yes, 2016
A convergent total synthesis of anhydrolycorinone is detailed, enlisting sequential intramolecular Diels−Alder reactions of a suitably substituted 2-amino-1,3,4-oxadiazole defining a novel oxadiazole → furan → benzene Diels−Alder ...
Dale L. Boger (1306542)   +1 more
core   +1 more source

Biological Evaluation of Novel Synthesized 2, 5-disubstituted-1, 3, 4-oxadiazole derivatives [PDF]

open access: yes, 2019
Synthesis of a series of various 2, 5-disubstituted-1, 3, 4-oxadiazole derivatives (7a-7v) have been done previously. These novel synthesized derivatives (7a-7v) have been tested for their antibacterial activity against Gram +ve S. aureus and Gram -ve E.
Sharma, Neetesh Kumar   +2 more
core   +1 more source

5-(Adamantan-1-yl)-3-[(4-benzylpiperazin-1-yl)methyl]-1,3,4-oxadiazole-2(3H)-thione

open access: yesActa Crystallographica Section E, 2012
The molecule of the title compound, C24H32N4OS, is a functionalized 1,3,4-oxadiazole-2-thione with substituted piperazine and adamantanyl substituents attached at the 3- and 5-positions, respectively, of the oxadiazole spacer with an approximately C ...
Ali A. El-Emam   +4 more
doaj   +1 more source

Non-symmetrical 1,3,4-oxadiazole derivatives: Synthesis, characterization, and computational study of their optical properties

open access: yesChemical Physics Impact, 2023
Applications in electronics and photonics have spurred research on new electronic and optical materials, including organic chromophores. In this work, we synthesized and characterized five compounds (4 of which novel) containing the 1,3,4-oxadiazole ...
Mário S.S. Oliveira   +4 more
doaj   +1 more source

n‑Type Polyimides with 1,3,4-Oxadiazole-Substituted Triphenylamine UnitsAn Innovative Structural Approach

open access: yes, 2019
A novel aromatic diamine containing 1,3,4-oxadiazole-substituted triphenylamine (TPA) was successfully synthesized and structurally characterized.
Andra-Elena Bejan (6857759)   +2 more
core   +1 more source

4-Amino-3-(1-{[amino(3-methyl-2-oxido-1,2,5-oxadiazol-4-yl)methylene]hydrazinylidene}ethyl)-1,2,5-oxadiazole 2-Oxide

open access: yesMolbank, 2022
Functionally substituted 1,2,5-oxadiazole 2-oxides (furoxans) are important pharmaceutical scaffolds used for the preparation of various pharmacologically active substances.
Margarita A. Epishina   +2 more
doaj   +1 more source

Click‐Spaltung quartärer Anilinium‐Tetrazine ermöglicht Kaskadenaufbau multifunktioneller biomolekularer Gerüste

open access: yesAngewandte Chemie, EarlyView.
Die Click‐Chemie hat sich von dem Aufbau kovalenter Bindungen hin zum Spalten von Bindungen weiterentwickelt. Hier wird über einen Kaskaden‐Aufbau berichtet, der diese Verfahren kombiniert, um multifunktionale biomolekulare Gerüste in einer modularen Ein‐Topf‐Reaktion aufzubauen.
Markus Staudt   +9 more
wiley   +1 more source

Antibacterial and Antiviral Activities of 1,3,4-Oxadiazole Thioether 4HChromen-4-one Derivatives

open access: yes, 2021
Various 1,3,4-oxadiazole thioether 4H-chromen-4-one derivatives were conceived. The title compounds demonstrated striking inhibitory effects against Xac, Psa, and Xoo. EC50 data exhibited that A8 (19.7 μg/mL) had better antibacterial activity against Xoo
Xiao Cao (1579414)   +17 more
core   +1 more source

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