Results 31 to 40 of about 8,940 (287)

Antitubercular and antibacterial activities of isoxazolines derived from natural products: Isoxazolines as inhibitors of Mycobacterium tuberculosis InhA

Journal Chemical Research, 2021
Isoxazoline derivatives of the natural products eugenol, 1’-S-acetoxychavicol acetate and sclareol are prepared through 1,3-dipolar cycloaddition reactions in an aqueous buffered system.
A. Phanumartwiwath, Chatchai Kesornpun, Sanya Sureram, P. Hongmanee, P. Pungpo, Pharit Kamsri, Auradee Punkvang, Chatchakorn Eurtivong, P. Kittakoop, S. Ruchirawat   +9 more
semanticscholar   +1 more source

MnVI-NP–Catalyzed Generation of Nitrile Oxides: Easy Access to Isoxazolines and Isoxazoles via Stereoselective 1,3-Dipolar Cyclo­addition Reactions

SynOpen, 2022
The versatility and effectiveness of MnVI-NPs as a catalyst is examined for the generation of nitrile oxides from aldoximes and subsequent 1,3-dipolar cycloaddition reactions.
Yasmin Saima, Saikat Khamarui
doaj   +1 more source

The continuing significance of chiral agrochemicals. [PDF]

Pest Manag Sci
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Jeschke P.
europepmc   +2 more sources

[3 + 2] Cycloaddition reactions of nitrile oxides generated in situ from aldoximes with alkenes and alkynes under ball-milling conditions

Green Chemistry Letters and Reviews, 2022
A convenient and efficient [3 + 2] cycloaddition reaction of alkenes and alkynes with the in situ generated nitrile oxides from aldoximes in the presence of NaCl, Oxone and Na2CO3 has been developed to afford a series of isoxazoles and isoxazolines at ...
Run-Kai Fang, Zheng-Chun Yin, Jun-Shen Chen, Guan-Wu Wang   +3 more
doaj   +1 more source

Comparative in vitro evaluation of contact activity of fluralaner, spinosad, phoxim, propoxur, permethrin and deltamethrin against the northern fowl mite, Ornithonyssus sylviarum. [PDF]

, 2017
BackgroundNorthern fowl mites (Ornithonyssus sylviarum) are obligate hematophagous ectoparasites of both feral birds and poultry, particularly chicken layers and breeders.
Flochlay-Sigognault, Annie, Heckeroth, Anja R, Jirjis, Faris, Mullens, Bradley A, Murillo, Amy C, Zoller, Hartmut   +5 more
core   +1 more source

Büchwald-Hartwig reaction applied to synthesis of new luminescent liquid crystal triarylamines derived from isoxazoles [PDF]

, 2015
© 2015 Taylor & Francis Group, LLC. The present work describes the synthesis and characterization of novel series of triarylamines isoxazoles (TAA) addressed to the organic photovoltaic materials. Diarylisoxazoles were synthesized by sequential [3+2] 1,
Fernandes, T. H. M., Kelly, S. M., Merlo, A. A., Vilela, G. D.   +3 more
core   +2 more sources

Choosing Treatment for Dogs With Generalised Demodicosis – Isoxazolines or Imidacloprid and Moxidectin?

Veterinary Evidence, 2019
PICO questionIn dogs with generalised demodicosis, are isoxazolines as effective as a combined formulation of imidacloprid and moxidectin at reducing mite count and the severity of associated clinical signs?Clinical bottom lineFive single-blinded ...
Sarah Long
doaj   +1 more source

Synthesis of 3,5-Disubstituted Isoxazoles and Isoxazolines in Deep Eutectic Solvents [PDF]

, 2015
The synthesis of different 3,5-disubstituted isoxazoles and related isoxazolines using choline chloride:urea as deep eutectic solvent (DES) in a one-pot three step reaction has been accomplished successfully. The use of highly nucleophilic functionalized
Pérez Galera, Juana María, Ramón, Diego J.   +1 more
core   +3 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

Implications of flexible spacer rotational processes on the liquid crystal behavior of 4,5-dihydroisoxazole benzoate dimers [PDF]

, 2015
The synthesis of some novel non-symmetric liquid crystal dimers, {3-[4-(octyloxyphenyl)]-4,5-dihydroisoxazol-5-yl}alkyl 4-(decyloxy)benzoates (5a–d) and 4-{3-[4-(octyloxyphenyl)]-4,5-dihydroisoxazol-5-yl}alkyl 4-{[6-(octyloxy)naphthalen-2-yl]ethynyl ...
Bechtold, Ivan H., Gonçalves, Paulo F. B., Kelly, Stephen M., Kitney, Stuart P., Merlo, Aloir A., Tavares, Aline, Toldo, Josene M., Vilela, Guilherme D.   +7 more
core   +3 more sources