Results 31 to 40 of about 15,523 (224)

Arylation Reactions in the Synthesis of Biologically Important 2,5-Diaryl-1,3,4-Oxadiazoles

open access: yesApplied Sciences, 2022
Apart from carbon atoms, some cyclic molecules contain other elements and play an extraordinary role in human life. Among these systems, 1,3,4-oxadiazole derivatives deserve special attention due to their biological properties such as antibacterial ...
Monika Olesiejuk, Agnieszka Kudelko
doaj   +1 more source

Synthesis and Antioxidant Activity of Styrylsulfonylmethyl 1,3,4-Oxadiazoles, Pyrazolyl/Isoxazolyl-1,3,4-oxadiazoles

open access: yesChemical and Pharmaceutical Bulletin, 2013
A new class of mono and bis heterocycles-styrylsulfonylmethyl 1,3,4-oxadiazoles, pyrazolyl/isoxazolyl-1,3,4-oxadiazoles were prepared and studied their antioxidant activity. The compound methyl substituted 2-(p-methylphenylamino-sulfonylmethyl)-5-[Z-(p-methylstyrylsulfonylmethyl)]-1,3,4-oxadiazole displayed slightly higher antioxidant activity than the
Mallikarjuna Reddy, Guda   +5 more
openaire   +3 more sources

A Review Exploring Therapeutic Effect of 1,3,4-Oxadiazole Compounds

open access: yes, 2023
There are many synthesized compounds that contain the five-membered aromatic ring 1,3,4-oxadiazole. It is advantageous for 1,3,4-oxadiazole derivatives to have effective binding with various enzymes and receptors in biological systems through numerous ...
Kurup, Shilpa S, Jat, Rakesh Kumar
core   +1 more source

Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides

open access: yesAngewandte Chemie, Volume 138, Issue 22, 25 May 2026.
A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu   +4 more
wiley   +2 more sources

Antibacterial Activity and Mechanism of Action of Sulfone Derivatives Containing 1,3,4-Oxadiazole Moieties on Rice Bacterial Leaf Blight

open access: yesMolecules, 2015
In this study, sulfone derivatives containing 1,3,4-oxadiazole moieties indicated good antibacterial activities against rice bacterial leaf blight caused by the pathogen Xanthomonas oryzaepv. pv. oryzae (Xoo).
Li Shi   +6 more
doaj   +1 more source

Synthesis and Study of Some 4-Chlorophenoxy Methyl Substituted amido1,3,4-Oxadiazoles, 1,3,4-Thiadiazoles and 1,2,4-Triazoles from 4-Chloro phenoxy acetic acid [PDF]

open access: yesمجلة التربية والعلم, 2013
: In this paper the synthesis of some substituted 1,3,4-oxadiazole, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. 4-Chlorophenol was treated with chloroacetic acid to give 4-chlorophenoxy acetic acid (C1) which was reacted with thionyl chloride ...
Mudhar A. Othman, Khalid M. Daoud
doaj   +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

Tổng hợp và đánh giá hoạt tính kháng khuẩn của một số dẫn xuất naphthalene-1,3,4-oxadiazole

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2018
1,3,4-Oxadiazole có nhiều hoạt tính sinh học bao gồm kháng khuẩn, kháng nấm, kháng viêm, giảm đau, hạ lipid máu, kháng ung thư, chống co giật, chống đái tháo đường, kháng virus và chống loét.
Nguyễn Thị Cẩm Hồng   +7 more
doaj   +1 more source

Palladium(II) and Platinum(II) Deprotonated Diaminocarbene Complexes Based on N-(2-Pyridyl)ureas with Oxadiazole Periphery

open access: yesInorganics, 2022
Metal mediated coupling of isocyanides with substituted N-(pyridine-2-yl) ureas was first used to incorporate privileged biological motifs into platinum metal complexes.
Kirill K. Geyl   +7 more
doaj   +1 more source

2-Phenyl-5-(p-tolyl)-1,3,4-oxadiazole

open access: yes, 2011
Funding: University of St. Andrews and the Engineering and Physical Science Research Council (EPSRC, UK).The title compound, C15H12N2O, adopts the expected near-planar geometry, the phenyl and tolyl rings being inclined relative to the oxadiazole ring by
Woollins, J. Derek   +7 more
core   +1 more source

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