Results 31 to 40 of about 5,265 (218)

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

open access: yesOrbital: 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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

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

open access: yesNext 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   +8 more
doaj   +1 more source

Synthesis of natural products via isoxazoles

open access: yes, 1987
Synthetic routes to natural products using isoxazole derivatives as key intermediates are reviewed. 1. Introduction 2. General Considerations 2.1. Methods of Preparation 2.2. Functionalization 2.3. Ring Opening Procedures 3. Synthesis of Natural Products
BENETTI, Simonetta   +4 more
core   +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

open access: yesBeilstein 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   +6 more
doaj   +1 more source

Síntese regiosseletiva de cristais líquidos contendo o heterociclo isoxazol [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaMoléculas com características líquido-cristalinas têm ultimamente atraído um grande interesse por parte de ...
Bryk, Fernando Rebouças
core  

Heat Shock Protein 90: From Molecular Chaperone Function to Therapeutic Targeting in Malignancies

open access: yesAdvanced Science, EarlyView.
In this review, an integrated conceptual framework linking HSP90's molecular chaperone functions to its pathological roles in cancer is proposed. HSP90 serves as a central node that integrates oncogenic signaling, buffers proteotoxic stress, maintains cancer stem cell plasticity, and shapes tumor‐immune interactions, all of which converge to drive ...
Beibei Zhang   +4 more
wiley   +1 more source

A facile synthesis of 3-cyclopropyl- and 5-cyclopropyl-isoxazoles [PDF]

open access: yes, 1999
The regioselective synthesis of isomeric isoxazoles 3-(2-arylcyclopropyl)-5-methylthio- and 5-(2-arylcyclopropyl)- 3-methylthio-isoxazoles is ...
Ila, H.   +2 more
core   +1 more source

Relapses, Comorbidities, and Predictors of Outcome in Anti‐GABAA Receptor Encephalitis

open access: yesAnnals of Neurology, EarlyView.
Objectives To characterize the magnetic resonance imaging (MRI) lesion dynamics, comorbidities, predictors of relapse, and outcomes in anti‐γ‐aminobutyric acid type A receptor (GABAAR) encephalitis, and assess the utility of LIM‐domain‐only‐protein 5 (LMO5) antibodies as tumor markers.
Claudia Papi   +33 more
wiley   +1 more source

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

open access: yesIranian 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  

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