Results 131 to 140 of about 340,649 (242)

Precision Chemistry for Protein Lysine Modification

open access: yesChemistry – A European Journal, Volume 32, Issue 34, 11 September 2026.
Selective modification of lysine residues is challenging due to their similar intrinsic reactivity. Inspired by enzymatic recognition, ligand‐guided electrophiles enable site‐selective labeling and functionalization, while ligand‐guided catalyses achieve regioselective installation of bio‐relevant post‐translational modifications.
Mayu Onoda, Motomu Kanai
wiley   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, Volume 38, Issue 51, 11 September 2026.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

The Jekyll and Hyde Nature of Tetrazoles in Polymer Science: From Intrinsic Electronic Duality to Programmable Macromolecular Function

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 36, 1 September 2026.
Tetrazoles are reframed as substitution‐programmable heterocycles rather than static functional groups in polymer chemistry. By linking electronic identity to synthetic strategy and polymer architecture, this mini‐review establishes a design framework for translating tetrazole duality into predictable macromolecular function.
Meryem S. Akdemir, Hatice Mutlu
wiley   +1 more source

Overview of Photochemical Reactions for the Synthesis of Aza and Oxa‐Spirocyclic Compounds Under Visible Light Irradiation

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
This review presents the visible‐light‐mediated photochemical reaction for the synthesis of aza, oxa, and aza–oxa spirocyclic compounds via photoinduced electron transfer (PET), hydrogen atom transfer (HAT), single‐electron transfer (SET), or energy transfer (EnT) pathways.
Annu Bhardwaj   +4 more
wiley   +1 more source

Chloro(phenyl)(1H-pyrazole-kappa N-2)-(triphenylphosphine-kappa P)palladium(II)

open access: yes, 2004
In the title compound, [Pd(C6H5)Cl(C 3H4N2)(P(C6H5) 3}], the phenyl and Cl ligands lie mutually trans. The compound is the first structurally characterized complex with four monodentate Cl, P, N and (non-carbenoid) C ligands in a square-planar four ...
White, AH (15476111)   +2 more
core  

Computational, In Vitro, and In Vivo Evaluation of Benzimidazole–Pyrazole Hybrid Scaffolds as Multi‐Target Anti‐Ulcer Agents

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
The hybrid pharmacophore approach involves the combination of benzimidazole‐pyrazole moieties to form multi‐functional anti‐ulcer compounds. Molecular modeling and biological evaluations show significant proton pump inhibition, anti‐inflammatory action, antioxidant property, and remarkable prevention of gastric ulcers.
Hafiz Aamir Ali Kharl   +8 more
wiley   +1 more source

1,3‐Dipolar Cycloaddition of Nitroalkanes as a Tool of DOS/LOS‐Like Strategy for the Synthesis of Isoxazoles and Isoxazolines

open access: yesChemistryEurope, Volume 4, Issue 9, September 2026.
A broadly applicable synthetic platform based on a DOS/LOS‐like strategy is implemented for the case of sp3‐enriched isoxazole/isoxazoline building blocks. The method is based on a [3+2] cycloaddition of nitroalkanes and various alkenes or alkynes. The utility of the proposed approach is illustrated by the discovery of JAK2‐selective inhibitors.
Bohdan A. Chalyk   +12 more
wiley   +1 more source

Co‐Acid Free Nitration of N,N‐Dimethylanilines Using Traditional and Nontraditional Activation Methods

open access: yesChemistry–Methods, Volume 6, Issue 9, September 2026.
Selective mono‐ and dinitration of dimethylanilines by co‐acid‐free dilute aqueous nitric acid using nontraditional activation methods, such as microwave, ultrasound, and high hydrostatic pressure. The nitration of aromatic compounds is a highly important transformation, contributing to the synthesis of dyes, agrochemicals, explosives, pharmaceuticals,
Kelsey M. Plasse   +2 more
wiley   +1 more source

Identification of New Anti‐Trypanosoma brucei Leads: An Integrated CRK12‐Guided Virtual Screen With Experimental Validation

open access: yesChemical Biology &Drug Design, Volume 108, Issue 3, September 2026.
An integrated computational‐experimental workflow enabled CRK12‐guided hit discovery against Trypanosoma brucei under limited structural and ligand data. The workflow of virtual screening and anti‐T. brucei bioassays identified 4 hit compounds, including three low‐micromolar leads (IC50 = 1.47, 0.81, and 1.33 μM). ABSTRACT Human African trypanosomiasis
Qin Li   +11 more
wiley   +1 more source

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