Results 21 to 30 of about 3,701 (179)

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

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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

Photocycloaddition of aromatic and aliphatic aldehydes to isoxazoles: Cycloaddition reactivity and stability studies

Beilstein Journal of Organic Chemistry, 2011
The first photocycloadditions of aromatic and aliphatic aldehydes to methylated isoxazoles are reported. The reactions lead solely to the exo-adducts with high regio- and diastereoselectivities. Ring methylation of the isoxazole substrates is crucial for
Axel G. Griesbeck, Marco Franke, Jörg Neudörfl, Hidehiro Kotaka   +3 more
doaj   +1 more source

Catalytic Enantioselective Intramolecular Aza‐Michael Addition to α,β‐Unsaturated Esters

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
A general method for accessing enantioenriched saturated N‐heterocycles via a catalytic enantioselective intramolecular aza‐Michael reaction to α,β‐unsaturated esters is described. A superbasic bifunctional iminophosphorane (BIMP) catalyst was key to enabling reactivity of the high pKa sulfonamide pronucleophile, whilst delivering good to excellent ...
Evan G. W. Rutter, Cameron J. MacRae, Haoran Xiong, Daniel Rozsar, Katherine F. P. Clarke, Darren J. Dixon   +5 more
wiley   +2 more sources

Direct Nucleophilic Difluoromethylation of Aromatic Isoxazoles Activated by Electron-Withdrawing Groups Using (Difluoromethyl)trimethylsilane

ScienceOpen Research, 2014
The activation of aromatic diaryl isoxazoles with strong electron-withdrawing groups, such as the nitro, triflyl and the phenylsulfonyl groups, at the 4-position has enabled the first regio- and diastereoselective difluoromethylation at the 5-position of
doaj   +3 more sources

An Anterior Cingulate Cortex‐Anterior Insular Cortex Glutamatergic Circuit Gates Stress‐Induced Visceral Hypersensitivity and Anxiety via Ionotropic Glutamate Receptors Trafficking

Advanced Science, EarlyView.
This study identifies an anterior cingulate cortex (ACC) to anterior insular cortex (AIC) glutamatergic (Glu) circuit that gates stress induced visceral hypersensitivity and anxiety. Circuit activation induces both phenotypes, whereas inhibition relieves them.
Junwen Wang, Guangbing Duan, Huihui Sun, Zhiyu Dong, Qiwei Wang, Xiaowei Li, Ying Chen, Shuchang Xu, Ying Huang   +8 more
wiley   +1 more source

Nitroimidazoles XIII. Synthesis of Substituted (1-Methyl-5-Nitro-2-Imidazolyl) Isoxazoles [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1998
The beta0diketone derivatives of nitroimidazole were synthesized from the reaction of magnesium salt of beta-ketoaccids 3 with imidazolide 4. The raction of beta-diketones with hydroxylamine hydrochloride afforded either the isoxazoles or the 5-hydroxyl ...
Abbas Shafiee, Mohammad ALi Ebrahimzadeh
doaj  

Carbon Anodes for Low‐Temperature Nonaqueous Alkali Metal‐Ion Batteries

EcoEnergy, EarlyView.
This review summarizes recent progress in carbon anodes for low‐temperature nonaqueous alkali‐metal ion batteries. Fundamental thermodynamic and kinetic limitations are examined, alongside a systematic discussion of graphite, hard carbon, and emerging carbon architectures.
Zhichun Miao, Dandan Yu, Guojie Liu, Yuyang Qin, Jingyun Mou, Wenlong Song, Lu Shi, Zengqin Xiao, Xin Yuan, Huayu Chen, Laishun Qin, Da Chen   +11 more
wiley   +1 more source