Results 21 to 30 of about 17,124 (205)

5,8-Dimethoxy-3,9-dimethyl-3a,4,9,9a-tetrahydro-4,9-epoxynaphtho[2,3-d]isoxazole

open access: yesActa Crystallographica Section E, 2014
The title compound, C15H17NO4, is the exo isomer with a syn arrangement of the O atom in the isoxazole ring to the methyl group of the bicyclic alkene. The dihedral angle between the isoxazole ring and the benzene ring is 7.42 (9)°.
Alan J. Lough   +2 more
doaj   +1 more source

Molecular modeling, synthesis, and antiproliferative evaluation of new isoxazole ring linked by Schiff bases and azo bond

open access: yesJournal of Advanced Pharmaceutical Technology & Research, 2023
Lung cancer is the most common malignancy worldwide, with approximately 1.8 million new cases yearly. Cytotoxic drugs are frequently used in cancer treatment.
Duha E Taha   +2 more
doaj   +1 more source

Isoxazolyl-Derived 1,4-Dihydroazolo[5,1-c][1,2,4]Triazines: Synthesis and Photochemical Properties

open access: yesMolecules, 2023
New fluorescent dyes containing an assembled 1,4-dihydroazolo[5,1-c][1,2,4]triazine (DAT) core and an isoxazole ring were synthesized through a reaction between diazopyrazole or diazoimidazoles and isoxazolyl-derived enamines in mild conditions.
Elena V. Sadchikova   +4 more
doaj   +1 more source

Synthesis and characterization of selected fused isoxazole and pyrazole derivatives and their antimicrobial activity [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
New potent antibacterials, fused isoxazole and pyrazole derivatives, were synthesized using 5,5-dimethylcyclohexane-1,3-dione (1) and 3-[(4-chlorobenzylidene) amino]-2-thioxoimidazolidin-4-one (2) as synthons.
Dabholkar Vijay V., Ansari Faisal Y.
doaj   +3 more sources

A de‐novo Approach Towards Divergent [3+2π/σ] Photocycloadditions of Nitrones via Assembly‐Controlled Kinetic Electron Transfer Gating

open access: yesAngewandte Chemie, EarlyView.
A metal‐free photocatalytic platform converts nitrones into 4‐isoxazolines and oxa–aza–bicycloheptanes through divergent [3+2π/σ] cycloadditions. Assembly‐controlled kinetic electron transfer gating dictates substrate activation, enabling selective reactivity beyond thermodynamic expectations.
Nayan Saha   +6 more
wiley   +2 more sources

Ethyl 5-methyl-3-phenylisoxazole-4-carboxylate

open access: yesActa Crystallographica Section E, 2013
In the title compound, C13H13NO3, the dihedral angle between the phenyl and isoxazole rings is 43.40 (13)°. The ethoxycarbonyl group is rotated out of the plane of the isoxazole ring by 16.2 (13)°.
Chandra   +4 more
doaj   +1 more source

4-(4-Fluorophenyl)-2-methyl-3-(1-oxy-4-pyridyl)isoxazol-5(2H)-one

open access: yesActa Crystallographica Section E, 2008
The crystal structure of the title compound, C15H11FN2O3, was determined as part of a study on the biological activity of isoxazolone derivatives as p38 mitogen-activated protein kinase (MAPK) inhibitors.
Stefan Laufer   +2 more
doaj   +1 more source

Über Triaryl‐isoxazole [PDF]

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

2,10-Bis(3-bromophenyl)-3,7,11,15-tetraoxa-8,16-diazatricyclo[12.2.1.16,9]octadeca-1(16),6(18),8,14(17)-tetraene

open access: yesActa Crystallographica Section E, 2010
The title compound, C24H20Br2N2O4, is an 18-membered tricycle including two isoxazole rings. The asymmetric unit contains one half of the formula unit; a centre of inversion is located at the centroid of the compound.
Kwang Ha   +3 more
doaj   +1 more source

New Approaches for the Synthesis of Heterocyclic Compounds Derived from Cyclohexan-1,3-dione with Anti-proliferative Activities

open access: yesActa Chimica Slovenica, 2021
In the present work a series of heterocyclization reactions were adopted using cyclohexan-1,3-dione through its reaction with either furan-2-carbaldehyde or thiophene-2-carbaldehyde to give the corresponding ylidene derivatives 3a,b. The latter compounds
Rafat Milad Mohareb   +2 more
doaj   +1 more source

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