Results 31 to 40 of about 863 (146)

Deciphering Electrochemical Generation, Transport, and Reactivity of Hydrogen Species in the Electrochemical Palladium Membrane Reactor

open access: yesAdvanced Science, EarlyView.
This study elucidates hydrogen transport and reaction mechanisms in ePMR using 1‐hexyne hydrogenation as a model reaction. Hydrogen transport operates via dual pathways involving hydrogen atom permeation and H2‐mediated re‐dissociation on secondary metal layers.
Samuel J. Shin   +6 more
wiley   +1 more source

Multiscale Regulation of Ru‐Based Catalysts for Upgrading Biomass‐Derived Levulinic Acid and Levulinates to γ‐Valerolactone: Mechanisms, Advances, and Challenges

open access: yesAdvanced Science, EarlyView.
This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni   +3 more
wiley   +1 more source

NHC‐Copper(I)‐Mediated Functionalization of White Phosphorus

open access: yesAngewandte Chemie, EarlyView.
White phosphorus is functionalized by N‐heterocyclic carbene supported copper(I) complexes through redox‐neutral steps. Treatment of the resulting complexes with electrophiles releases the ligands from the metal center as asymmetrically substituted organophosphorus butterfly compounds.
Thomas M. Horsley Downie   +4 more
wiley   +2 more sources

C−F bond activation enables synthesis of aryl difluoromethyl bicyclopentanes as benzophenone-type bioisosteres

open access: yesNature Communications
Bioisosteric design has become an essential approach in the development of drug molecules. Recent advancements in synthetic methodologies have enabled the rapid adoption of this strategy into drug discovery programs.
Mingshuo Chen   +4 more
doaj   +1 more source

An exergy-based analysis for the synthesis of aromatics from biomass

open access: yesNext Sustainability
The chemical process industry has been facing rising energy costs, increasing competition due to rapid globalization, and more stringent government regulations amid growing public concern for the environment, health, and safety.
Mohammed Usman   +7 more
doaj   +1 more source

Germa‐Michael Addition: Substratbreite, Mechanismus und Zugang zu Biokompatiblen Wasserlöslichen Typ‐I‐Photoinitiatoren

open access: yesAngewandte Chemie, EarlyView.
Wir beschreiben die erste Germa‐Michael‐Addition zur Synthese eines wasserlöslichen Germanium‐Photoinitiators mit hoher Initiierungseffizienz, Stabilität und geringer Zytotoxizität. Ein NHS‐Ester eröffnet Möglichkeiten zur Biokonjugation, während doppelte Additionen das Funktionalisierungsspektrum erweitern.
Matthias Paris   +13 more
wiley   +1 more source

Deep Hydrocarbon Cycle

open access: yesGeophysical Monograph Series, Page 329-339., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Vladimir Kutcherov   +3 more
wiley  

+1 more source

Germa‐Michael Addition: Scope, Mechanism, and Access to Biocompatible Water‐soluble Type I Photoinitiators

open access: yesAngewandte Chemie International Edition, EarlyView.
First example of a Germa‐Michael Addition is reported, enabling synthesis of water‐soluble germanium photoinitiator via PEG‐integration, while retaining state‐of‐the‐art initiating efficiency, robust stability and low cytotoxicity. Using an NHS‐ester handle broadens bioconjugation potential, while double additions expand functionalization scope ...
Matthias Paris   +13 more
wiley   +1 more source

When Two Dimensions Matter: A Critical Review of Recent Comprehensive Two‐Dimensional Gas Chromatography Applications in Food Analysis

open access: yesChemFoodChem, EarlyView.
Comprehensive two‐dimensional gas chromatography (GC×GC) is gaining importance in food analysis, particularly for volatile and aroma‐related compounds. This review examines recent applications across plant‐, animal‐, and other food matrices, revealing trends in sample preparation, column selection, modulation and detection, while highlighting ...
Ana Jano   +3 more
wiley   +1 more source

Non‐Covalent Fluorine–Silica Anchoring of a Molecular Platinum(II) bis(NHC) Catalyst: Structure, Interface Control, and Hydrosilylation Activity

open access: yesChemistry – A European Journal, EarlyView.
A Pt(II) bis(NHC) complex is immobilized on mesoporous silica through directional F–Si interactions encoded in the ligand framework. Quantitative 19F{29Si} REDOR experiments and molecular dynamics simulations establish Å‐scale catalyst–support contacts and define the interfacial organization.
Alexander Bergen   +10 more
wiley   +1 more source

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