Results 81 to 90 of about 3,662 (206)

Carbamate‐Directed peri‐CH Alkynylation: Application to the Synthesis of Zethrenes and Pyranthrenes

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
The Rh(III)‐catalyzed regioselective alkynylation of 1‐pyrenyl and 1‐naphthyl carbamates with bromoacetylenes enables the selective installation of an alkyne at the peri position of readily accessible amino‐substituted polycyclic aromatic hydrocarbons (PAHs).
Xiaoqing Shao   +4 more
wiley   +1 more source

Chemical Upcycling of Nitrile Butadiene Rubbers to Polyamines and Polyols by Chemoselective Catalytic Hydrogenation

open access: yesAngewandte Chemie, Volume 138, Issue 18, 27 April 2026.
We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez   +7 more
wiley   +2 more sources

Spin Effects in Photocatalysis: Fundamental Insights and Applications

open access: yesCarbon Neutralization, Volume 5, Issue 3, May 2026.
This review outlines the fundamental principles of spin‐dependent processes in photocatalysis, with a focus on recent advances in spin effects across various applications, including photocatalytic water splitting, CO2 conversion, environmental remediation, organic synthesis, and H2O2 production.
Yang‐Sen Xu   +4 more
wiley   +1 more source

Current Research Trend and Future Research Trajectory of Single Atom Catalysis in Environmental Pollution Control: A Hybrid Approach

open access: yesEcoMat, Volume 8, Issue 5, May 2026.
Evolution of single‐atom catalysis in environmental pollution control, analyzed through a bibliometric–AI hybrid framework that reveals research trends, key topics, and future directions, providing systematic insights to guide the development and application of SACs in sustainable environmental remediation.
Md. Saiful Islam   +4 more
wiley   +1 more source

Proposal of an in silico profiler for categorisation of repeat dose toxicity data of hair dyes [PDF]

open access: yes
This study outlines the analysis of repeat dose toxicity data taken from Scientific Committee on Consumer Safety (SCCS) opinions for commonly used hair dyes in the European Union. Structural similarity was applied to group these chemicals into categories.
Ates, G   +6 more
core   +1 more source

Volatilomic Differentiation of Protected‐Origin Italian Balsamic Vinegars by HS‐SPME‐GC×GC‐TOFMS

open access: yesJournal of Separation Science, Volume 49, Issue 5, May 2026.
ABSTRACT Balsamic vinegars produced under Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI) schemes differ substantially in raw materials, processing intensity, and aging regimes. Although these differences are expected to shape their volatile composition, a comprehensive chemical characterization capable of reliably ...
Sofia Malcangi   +4 more
wiley   +1 more source

Anion‐Controlled Structural Interconversion of Palladium Cages Enables Separations by Selective Guest Capture and Release

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
We report a pair of interconvertible palladium(II) cages assembled from an asymmetric ligand, whose switching is triggered by specific counter‐anions, tetrafluoroborate (BF4−) and bis(trifluoromethanesulfonyl)imide (NTf2−). Their complementary guest preferences enable orthogonal, multi‐cycle catch‐and‐release, exemplified by the selective purification ...
Zhe Li   +2 more
wiley   +2 more sources

Cholestatic Hepatitis in Young Migrants Exposed to Fuel Vapours: An Emerging Toxicity From the Mediterranean Sea

open access: yes
Acta Paediatrica, EarlyView.
Antonio Corsello   +4 more
wiley   +1 more source

Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications

open access: yesMass Spectrometry Reviews, Volume 45, Issue 3, Page 548-582, May/June 2026.
ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav   +3 more
wiley   +1 more source

Discovery of 4‐Quinazolinone‐Containing Phenylalanine Derivatives as Potent, Resistant‐Tolerant HIV Capsid Inhibitors

open access: yesMedComm, Volume 7, Issue 5, May 2026.
Novel phenylalanine derivatives were identified as HIV‐1 capsid inhibitors. IC‐2i showed significant anti‐HIV‐1 activity at picomolar concentrations. ABSTRACT The HIV‐1 capsid (CA) is a validated antiviral target that plays critical roles in both the early and late stages of the viral life cycle.
Xujie Zhang   +18 more
wiley   +1 more source

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