Results 41 to 50 of about 4,771 (210)
METAL-HYDRIDE REDUCTION OF ISOXAZOLINE-3-CARBOXYLATE ESTERS
, 1986 The reduction of a series of isoxazolino-3-carboxylate esters with sodium borohydride gave 3-(hydroxymethyl)isoxazolines in 34-98% yield. Reduction with DIBAH gave isoxazoline-3-carboxaldehydes in 63 and 85% yields for the two reactions studied ...
D. T. Price +11 more
core +1 more source
Pest Management Science, EarlyView.The inheritance of methomyl resistance in Dalbulus maidis is autosomal, incompletely dominant and polygenic. No cross‐resistance was found between methomyl and chlorfenapyr, cyantraniliprole and isocycloseram. Abstract BACKGROUND Acetylcholinesterase (AChE) inhibitor insecticides have been important tools for the management of Dalbulus maidis in Brazil;
Matheus Gerage Sacilotto +3 more
wiley +1 more source
Application of chiral 2-isoxazoline for the synthesis of syn-1,3-diol analogs
Beilstein Journal of Organic Chemistry, 2019 The asymmetric cycloaddition of TIPS nitronate catalyzed by “Cu(II)-bisoxazoline” gave the 2-isoxazoline product in 95% yield, which was converted into tert-butyl (3S,5R)-6-hydroxy-3,5-O-isopropylidene-3,5-dihydroxyhexanoate in 14 steps through a β ...
Juanjuan Feng +3 more
doaj +1 more source
Pest Management Science, EarlyView.Monitoring of Euschistus heros populations in Rio Grande do Sul, Brazil, from 2017 to 2026 revealed declining susceptibility to pyrethroids and neonicotinoids. Reduced susceptibility to λ‐cyhalothrin and acetamiprid persisted, whereas declines in susceptibility to bifenthrin, imidacloprid and certain pre‐formulated mixtures emerged more recently ...
Luiz F Warpechowski +7 more
wiley +1 more source
The continuing significance of chiral agrochemicals
Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.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.
Peter Jeschke
wiley +1 more source
Chemistry, 2022 Quinazolinone and isoxazoline systems have attracted much attention due to their interesting pharmacological properties. The association of these two pharmacophores in a single hybrid structure can boost the biological activity or bring a new one ...
Yassine Rhazi +7 more
doaj +1 more source
Oxaziridines: Versatile Reagents in Modern Organic Synthesis
The Chemical Record, EarlyView.Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra +2 more
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2020 A series of novel thiourea and amide liquid crystals containing 5-membered isoxazoline and isoxazole rings were synthetized and the liquid crystal properties studied.
Itamar L. Gonçalves +3 more
doaj +1 more source
The Chemical Record, EarlyView.Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider +6 more
wiley +1 more source
Synthesis and Characterization of Some Amides Containing Isoxazoline Ring
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017 This work involves synthesis of amides containing isoxazoline unit starting with chalcone; 4-[3-(3‾-nitrophenyl)-2-propene- 1-one]-aniline[I]. 4-Aminoacetophenone was reacted with 3-nitrobenzaldehyde in basic medium giving chalcone [I] by claisen ...
Kh. F. Ali, Dh. F Hussein, J. H. Tomma
doaj