Results 61 to 70 of about 4,540 (185)

Visible‐light‐promoted catalyst‐free benzylic C‐H oxidation using molecular oxygen as a green oxidant

open access: yesSmart Molecules, EarlyView.
A green and simple photo‐oxygenation of benzylic C‐H bond with molecular oxygen was developed for the preparation of a series of carbonyl compounds. The straightforward C‐H carbonylation strategy features catalyst‐ and additive‐free reaction conditions, only oxygen as a green oxidant, broad scope and scalable, and the simple‐operation nature.
Jianing Li   +6 more
wiley   +1 more source

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu   +2 more
wiley   +1 more source

π‐Enlargement in Porphyrin Macrocycles at Interfaces

open access: yesAngewandte Chemie, Volume 138, Issue 30, 20 July 2026.
On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán   +11 more
wiley   +2 more sources

Number and Position of Methoxy Substituents Govern Photophysics and Visible‐Light Photocatalysis in Earth‐Abundant Cu(I) Complexes

open access: yesChemSusChem, Volume 19, Issue 16, 27 August 2026.
The number and position of methoxy substituents provide a versatile molecular toolbox for tuning the photophysics and visible‐light photocatalytic performance of heteroleptic Cu(I) photosensitizers. Earth‐abundant Cu(I) photosensitizers are promising systems for visible‐light‐driven photocatalysis, but further design guidelines are required to relate ...
Kurt J. Haseloff   +6 more
wiley   +1 more source

Halogen Bonding‐Mediated Radical Cyclisation of Aryl Halides

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
Halogen bonding between aryl halides and tertiary amines facilitates photochemically initiated radical cyclisations that proceed at high concentration, greatly improving sustainability. Aryl halides are convenient, stable precursors to synthetically versatile aryl radicals, but the generation of the latter typically requires either stoichiometric tin ...
Emma L. Jones   +5 more
wiley   +1 more source

Observations on the Effects of Residualization and Dehalogenation on the Utility of N-Succinimidyl Ester Acylation Agents for Radioiodination of the Internalizing Antibody Trastuzumab

open access: yesMolecules, 2019
Trastuzumab is an antibody used for the treatment of human epidermal growth factor receptor 2 (HER2)-overexpressing breast cancers. Since trastuzumab is an internalizing antibody, two factors could play an important role in achieving high uptake and ...
Satish K. Chitneni   +3 more
doaj   +1 more source

A Silver-Modified Copper Foam Electrode for Electrochemical Dehalogenation Using Mono-Bromoacetic Acid as an Indicator

open access: yesInternational Journal of Electrochemical Science, 2011
To improve the effectiveness of dehalogenation of organic halogen compounds, a series of silver-modified Cu foam electrodes (Ag/Cu foam electrode) was prepared via chemical deposition, using AgNO3 as the precursor. The crystal structure and morphology of
Zhiqiao He   +4 more
doaj   +1 more source

Redox Modulation in Truxene‐Based Phosphaalkenes Through Peripheral Substitution

open access: yesChemistryEurope, Volume 4, Issue 8, August 2026.
Peripheral halogenation, followed by the sequential incorporation of one, two, and three phosphaalkene acceptor units, induces progressive distortion of the truxene framework, modulates the frontier molecular orbital energies, and systematically shifts the reduction potentials to milder values.
Toma Bhowmick   +3 more
wiley   +1 more source

General method for the synthesis of enaminones via photocatalysis

open access: yesBeilstein Journal of Organic Chemistry
Enaminones are key intermediates in the synthesis of several derivatives with important applications in medicinal chemistry. Furthermore, many marketed drugs feature the enaminone structural moiety.
Paula Pérez-Ramos   +2 more
doaj   +1 more source

Targeted radionuclide therapy with astatine-211: Oxidative dehalogenation of astatobenzoate conjugates

open access: yesScientific Reports, 2017
211At is a most promising radionuclide for targeted alpha therapy. However, its limited availability and poorly known basic chemistry hamper its use.
David Teze   +7 more
doaj   +1 more source

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