Results 191 to 200 of about 20,876 (282)

Selective Catalytic Oxidation of Benzyl Alcohol to Benzaldehyde With Alkyl Allyl Carbonates and Pd(II) Allyl‐Amidinate

open access: yesHelvetica Chimica Acta, Volume 109, Issue 3, March 2026.
A Pd(II) allyl‐amidinate complex catalyzes the selective oxidation of benzyl alcohols to aldehydes using allyl alkyl carbonates as tailored, mild oxidants. The carbonate reagent acts both as oxidant and in situ base, enabling chemoselective conversion and minimizing overoxidation under mild conditions.
Christian Ehinger   +3 more
wiley   +1 more source

Stable 1,3,2‐Benzodithiazolyl Radicals: Modification of Reactivity, Crystal Packing, and Solid State Magnetic Properties by Fluorination

open access: yesChemistryOpen, Volume 15, Issue 3, March 2026.
Fluorination reduces solid‐state thermal stability of 1,3,2‐benzodithiazolyl radicals and modulates crystal structures (e.g., by means of a new supramolecular zip‐synthon) and reactivity, in the latter case toward transformations unknown in the hydrocarbon series but potentially general in the fluorocarbon one.
Alexander A. Buravlev   +14 more
wiley   +1 more source

Borylated cyclobutanes via thermal [2 + 2]-cycloaddition. [PDF]

open access: yesChem Sci
Prysiazhniuk K   +6 more
europepmc   +1 more source

Recyclability of Polystyrene Bead Foams: Degradation Behavior over 10 Extrusion Cycles

open access: yesPolymer Engineering &Science, Volume 66, Issue 3, Page 1711-1722, March 2026.
This study investigates the multi‐cycle recycling of expanded polystyrene bead foam blended with virgin material. Material degradation is monitored by MFI, GPC, and mechanical testing. The results demonstrate that long‐term recyclability is feasible without progressive property loss, and that secondary high‐shear steps such as extrusion and pelletizing
Christian Töpfer   +2 more
wiley   +1 more source

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

Functional polymer materials containing heavy group‐14 elements focusing on germanium and tin

open access: yesSmart Molecules, Volume 4, Issue 1, March 2026.
The synthesis, functions, and applications of the polymers containing heavy group 14 elements focusing on germanium and tin are outlined. Owing to their large atomic radii and weak binding energies, the polymers show unique properties: chromism, luminescence, carrier mobility, and reactivity to produce radials and higher coordinated states.
Masayuki Gon, Kazuo Tanaka
wiley   +1 more source

Tuning Covalent Organic Frameworks via Nucleophilic Aromatic Substitution

open access: yesSmall Science, Volume 6, Issue 3, March 2026.
The direct nucleophilic aromatic substitution reaction on a fluorinated covalent organic framework leads to functional materials bearing bulky pendant groups such as carbazole or ferrocene. The method is versatile, suitable for O‐, S‐, and N‐based nucleophiles, and provides a unique conjugated structure containing electron‐withdrawing fluorine atoms ...
Óscar González‐Rosell   +8 more
wiley   +1 more source

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

open access: yesThe Chemical Record, Volume 26, Issue 3, March 2026.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim   +4 more
wiley   +1 more source

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