Results 61 to 70 of about 37,838,535 (141)

Accessing Heterocycle‐Containing Borazine Frameworks via C−H Functionalization Reactions of Heterocycles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.
A Pd/Cu cooperative catalytic system enables the direct C–H functionalization of a diverse range of five‐membered and benzo‐fused heterocycles with iodinated hexaarylborazines, providing efficient access to previously inaccessible heterocycle‐functionalized borazines.
Fan Huang   +5 more
wiley   +1 more source

Regioselective C5-alkylation and C5-methylcarbamate formation of 2,3-dihydro-4-pyridones and C3-alkylation and C3-methylcarbamate formation of 4-(pyrrolidin-1-yl)furan-2(5H)-one [PDF]

open access: yes, 2015
Reactions of N-alkyl-2,3-dihydro-4-pyridones and 4-(pyrrolidin-1-yl)furan-2(5H)-one with aldehydes and triethylsilane in a one-flask procedure provided C5 and C3 alkylated derivatives, respectively. Mannich-type reactions with formaldehyde and carbamates
Georg, Gunda I., Gu, Xingxian
core   +1 more source

QSAR, molecular docking, and design of novel 4-(N,N-diarylmethyl amines) Furan-2(5H)-one derivatives as insecticides against Aphis craccivora

open access: yesBulletin of the National Research Centre, 2020
Background Aphis craccivora has many plant hosts, though it seemingly forechoice to groups of bean family. Other plants it hosts are families of Solanaceae, Rosaceae, Malvaceae, Chenopodiaceae, Caryophyllaceae, Ranunculaceae, Cucurbitaceae, Brassicaceae,
Yusuf Isyaku   +4 more
doaj   +1 more source

Modification of the existing maximum residue levels for flupyradifurone and difluoroacetic acid (DFA) in various crops

open access: yesEFSA Journal, Volume 24, Issue 8, August 2026.
Abstract In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant Bayer AG submitted a request to the competent national authority in Greece to modify the existing maximum residue levels (MRL) for flupyradifurone and its metabolite difluoroacetic acid (DFA) in various commodities.
European Food Safety Authority (EFSA)   +11 more
wiley   +1 more source

Synthesis and Insecticidal Activity of an Oxabicyclolactone and Novel Pyrethroids

open access: yesMolecules, 2012
Deltamethrin, a member of the pyrethroids, one of the safest classes of pesticides, is among some of the most popular and widely used insecticides in the World. Our objective was to synthesize an oxabicyclolactone 6 and five novel pyrethroids 8–
Elson S. de Alvarenga   +5 more
doaj   +1 more source

(5S)-3-Chloro-4-(2,5-dihydro-1H-pyrrol-1-yl)-5-[(1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy]furan-2(5H)-one

open access: yesActa Crystallographica Section E, 2011
The title compound, C18H26ClNO3, was obtained via a tandem asymmetric Michael addition–elimination reaction of 3,4-dichloro-5-(S)-(l-menthyloxy)furan-2(5H)-one and 2,5-dihydro-1H-pyrrole in the presence of potassium fluoride.
Jing-Pei Huo   +3 more
doaj   +1 more source

Directed Hole Localization Stabilizing Interfacial Sulfur Species to Boost α‐C–H Activation for Selective Biomass Photo‐oxidation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
Efficient α‐C–H bond activation and directional conversion for selective biomass photo‐oxidation are achieved by integrating polarization and interface engineering strategies in P‐doped ZnIn2S4 polar photocatalysts, which leverage hole localization and stable interfacial sulfur species, endowing bio‐based HMF at 94.4% conversion with 94.5% selectivity ...
Yinyin He   +3 more
wiley   +1 more source

Supported 4-carboxybenzyl sulfamic acid on magnetic nanoparticles as a recoverable and recyclable catalyst for synthesis of 3,4,5-trisubstituted furan-2(5H)-one derivatives

open access: yes, 2018
4-Carboxybenzyl sulfamic acid functionalized Fe3O4 nanoparticles as a novel catalyst was manufactured. This catalyst was characterized and evaluated in the one-pot synthesis of furan-2(5H)-one derivatives from dimethyl acetylenedicarboxylate, aryl ...
Abdolhamid Alizadeh   +2 more
core   +1 more source

Synthesis and Reactivity of 3-Methylsulfinyl-2H-cyclohepta[b]furan-2-ones [PDF]

open access: yes, 2008
2H-Cyclohepta[b]furan-2-ones (2a,b) reacted with dimethyl sulfide dittiflate to give dimethy](2-oxo-2H-cyclohepta[b]furan-3-yl)sulfonium trifluoromethanesulfonates (3a,b), which were treated with Et3N to give 3-methylthio-2H-cyclohepta[b]furan-2-ones (4a,
Yasunami, M   +8 more
core   +1 more source

From Yield to Flavor: The Role of Lipid Coatings in Beef Aging

open access: yesJournal of Food Science, Volume 91, Issue 7, July 2026.
ABSTRACT Lipid‐coated aging has been proposed as an alternative to enhance flavor, particularly using butter as a coating material (butter‐aged beef). Thus, this study compared the wet‐aged and beef‐aged with different lipid‐based coatings: milk butter (butter‐aged), cocoa butter (cocoa‐aged), pork lard (lard‐aged), and beef tallow (tallow‐aged), all ...
Jonatã Henrique Rezende‐de‐Souza   +10 more
wiley   +1 more source

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