Results 71 to 80 of about 101,033 (289)

Polar Lattice‐Distorted Motifs Enable Synergy of Local Polarization/Dipole Fields for Concurrent Glyphosate Wastewater Remediation and CO Evolution

open access: yesAdvanced Science, EarlyView.
Photocatalytic treatment of glyphosate herbicide in agricultural wastewater is achieved through the cooperative effect of the local polarization field and dipole field mediated by lattice‐distorted carbon nitride. Glyphosate is completely degraded via selective C─P bond cleavage with a CO evolution rate of 1166 µmol g−1 h−1.
Daoping Chen   +7 more
wiley   +1 more source

Thioether-catalysed tandem synthesis of furans and cyclic ethers or lactones [PDF]

open access: yes, 2017
Acyclic conjugated ynenediones tethered to an alcohol or carboxylic acid are converted into furanyl-substituted cyclic ethers or lactones in a single step by treatment with the tetrahydrothiophene.
Clark, J. Stephen, Klaus, Verena
core   +1 more source

CRISPR/Cas9‐Based Vanadium MXene‐Free Radical Spatiotemporally Controlled Nanoreactor for Photothermal‐Induced Multi‐Effect Synergistic Antitumor Therapy

open access: yesAdvanced Science, EarlyView.
In this study, a MXene‐based V4C3 nanoplatform, VARH, was constructed, which achieved a photothermal conversion efficiency of 44.21% in the NIR‐II window. This platform integrated photothermal therapy, chemodynamic therapy, and thermodynamic therapy with CRISPR/Cas9‐mediated heat shock protein 90 knock‐out technology.
Zi‐Jian Huang   +8 more
wiley   +1 more source

Recent Advances in the Application of 2‐Aminobenzothiazole to the Multicomponent Synthesis of Heterocycles

open access: yesChemistryOpen
Heterocycles are a vital class of compounds in numerous fields, including drug discovery, agriculture, and materials science. Efficient methods for the synthesis of heterocycles remain critical for meeting the demands of these industries. Recent advances
Ramin Javahershenas   +3 more
doaj   +1 more source

Recent Discovery of Nitrogen Heterocycles from Marine-Derived Aspergillus Species

open access: yesMarine Drugs
Nitrogen heterocycles have drawn considerable attention because of their structurally novel and significant biological activities. Marine-derived fungi, especially the Aspergillus species, possess unique metabolic pathways to produce secondary ...
Jueying Shi   +8 more
doaj   +1 more source

Sulfur-Nitrogen Heterocycles

open access: yesMolecules, 2005
n ...
Tomás Torroba   +1 more
doaj   +1 more source

Triggering redox activity in a thiophene compound: radical stabilization and coordination chemistry [PDF]

open access: yes, 2006
The synthesis, metalation, and redox properties of an acyclic bis(iminothienyl)methene L− are presented. This π-conjugated anion displays pronounced redox activity, undergoing facile one-electron oxidation to the acyclic, metal-free, neutral radical L ...
Davison   +46 more
core   +2 more sources

Modular Generation of Alkyl Selenyl Radicals for the Synthesis of Alkyl Selenides via a Mechanochemical Approach

open access: yesAdvanced Science, EarlyView.
We present a mechanochemical, radical‐mediated hydroselenation of alkenes under ambient conditions. This method modularly generates alkyl selenyl radicals from elemental selenium and alkyl (pseudo)halides, utilizing PhSiH3 and H2O as hydrogen atom donors, with the water likely originating from the air and/or trace water present in the reagents ...
Xiaochun He   +8 more
wiley   +1 more source

Mechanochemical synthesis of some heterocyclic molecules using Sonogashira cross-coupling reaction and their anticancer activities

open access: yesResults in Chemistry, 2020
A greener strategy for the synthesis of some functionalized heterocycles have been developed using Sonogashira cross-coupling reaction of furfural derived isoxazolidine and isoxazoline derivatives.
Bhaskar Chakraborty, Esmita Chettri
doaj   +1 more source

Biomimetic Polymerization of Tellurocysteine: Breaking the Natural Amino Acid Radioprotection Limitation

open access: yesAdvanced Science, EarlyView.
Inspired by natural amino acid polymer‐melanin systems, this study strategically incorporated tellurocysteine to develop advanced radiation‐shielding materials. This approach transformed the primary interaction mechanism between melanin‐based materials and incident photons from Compton scattering to the photoelectric effect. Tellurocysteine‐polymerized
Wei Chen   +6 more
wiley   +1 more source

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