Results 21 to 30 of about 5,810 (212)

Isoxazole derivatives as new nitric oxide elicitors in plants

Beilstein Journal of Organic Chemistry, 2017
Several 3,5-disubstituted isoxazoles were obtained in good yields by regiospecific 1,3-dipolar cycloaddition reactions between aromatic nitrile oxides, generated in situ from the corresponding hydroxyimidoyl chlorides, with non-symmetrical activated ...
Anca Oancea, Emilian Georgescu, Florentina Georgescu, Alina Nicolescu, Elena Iulia Oprita, Catalina Tudora, Lucian Vladulescu, Marius-Constantin Vladulescu, Florin Oancea, Calin Deleanu   +9 more
doaj   +1 more source

Über Triaryl‐isoxazole [PDF]

Berichte der deutschen chemischen Gesellschaft (A and B Series), 1921
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Meisenheimer, Jakob, Weibezahn, Karl
openaire   +2 more sources

Synthesis and Antimicrobial Activity of some Ester Functionalized Isoxazoles incorporating Anthracene Moieties via Nucleophilic Substitution Reaction

Zanco Journal of Medical Sciences, 2023
Background and objective: Five-membered heterocycle compounds having single oxygen and nitrogen atom at adjacent positions are known as isoxazoles. Isoxazole compounds have a broad range of biological activities and therapeutic value.
Sarbast M. Ahmed, Hewa Omer Ahmed, Faiq H. S. Hussain, Hayman Sardar Abdulrahman, Hemn A. Qader   +4 more
doaj  

Silver-Catalyzed Synthesis of Disubstituted Fluorinated Isoxazoles [PDF]

, 2020
The presence of fluorine can provide organic compounds with useful biological properties, such as increased metabolic stability and drug uptake. Because of these advantages, fluorinated compounds make up about 30% of the drug industry.
Stewart, Micah
core   +1 more source

Theoretical and experimental investigation for mild steel in acidic environment using isoxazole sulfonamide derivatives as anticorrosion inhibitors

Next Materials
Two isoxazoles sulfonamides namely N-butyl-2-(N-((3-(p-tolyl)isoxazol-5-yl)methyl)sulfamoyl)benzamide (IS-Cl) and N-butyl-2-(N-((3-(4-chlorophenyl)isoxazol-5-yl)methyl)sulfamoyl)benzamide (IS-CH3) were evaluated as some corrosion inhibitors for mild ...
Rachid Hsissou, Ayoub El Mahmoudi, Issam Saber, Zaki Safi, Mohamed El Faydy, Fouad Benhiba, Nuha Wazzan, Nadia Dkhireche, Khalid Bougrin   +8 more
doaj   +1 more source

Isoxazolium N-ylides and 1-oxa-5-azahexa-1,3,5-trienes on the way from isoxazoles to 2H-1,3-oxazines

Beilstein Journal of Organic Chemistry, 2014
Theoretical and experimental studies of the reaction of isoxazoles with diazo compounds show that the formation of 2H-1,3-oxazines proceeds via the formation of (3Z)-1-oxa-5-azahexa-1,3,5-trienes which undergo a 6π-cyclization.
Alexander F. Khlebnikov, Mikhail S. Novikov, Yelizaveta G. Gorbunova, Ekaterina E. Galenko, Kirill I. Mikhailov, Viktoriia V. Pakalnis, Margarita S. Avdontceva   +6 more
doaj   +1 more source

Various Synthetic Pathways for the Synthesis of 3,4-Disubstituted Isoxazole by One Pot Multicomponent Reaction

Orbital: The Electronic Journal of Chemistry, 2020
Isoxazole is a five membered heterocyclic compound which is an azole with an oxygen atom next to nitrogen. The substituted isoxazole derivatives show various biological activities like antimicrobial, antiviral, anti-inflammatory, antioxidant, anticancer ...
Parul Setia, Ruchi Bharti, Renu Sharma
doaj   +3 more sources

Polarclean as a Sustainable Reaction Medium for the Waste Minimized Synthesis of Heterocyclic Compounds

Frontiers in Chemistry, 2019
Herein we report the use of Rhodiasolv© Polarclean as a novel polar aprotic solvent for the synthesis of decorated heterocycles via dipolar cycloaddition (isooxazoles) or intramolecular C–H functionalization processes (benzo-fused chromenes).
Francesco Ferlin, Lorenzo Luciani, Orlando Viteritti, Francesco Brunori, Oriana Piermatti, Stefano Santoro, Luigi Vaccaro   +6 more
doaj   +1 more source

Electrochemical Synthesis of Isoxazoles and Isoxazolines via Anodic Oxidation of Oximes

ChemElectroChem, 2023
Isoxazol(in)es are widely featured structural motifs in natural products, agrochemicals, and pharmaceuticals. The first intermolecular approach for a direct electrochemical synthesis from readily available aldoximes is reported.
Silja Hofmann, Johannes Winter, Tobias Prenzel, Dr. María deJesús Gálvez‐Vázquez, Prof. Dr. Siegfried R. Waldvogel   +4 more
doaj   +1 more source

5-Chloroisoxazoles: A Versatile Starting Material for the Preparation of Amides, Anhydrides, Esters, and Thioesters of 2H-Azirine-2-carboxylic Acids

Molecules, 2022
Amides, anhydrides, esters, and thioesters of 2H-azirine-2-carboxylic acids were prepared by a rapid procedure at room temperature involving FeCl2-catalyzed isomerization of 5-chloroisoxazoles to 2H-azirine-2-carbonyl chlorides, followed by reaction with
Anastasiya V. Agafonova, Mikhail S. Novikov, Alexander F. Khlebnikov   +2 more
doaj   +1 more source