Results 221 to 230 of about 35,734 (288)

Toward Iron-Catalyzed Alkene Metathesis: Mapping the Reactivity and Deactivation Pathways of an Iron Metallacyclobutane. [PDF]

open access: yesAngew Chem Int Ed Engl
Młodzikowska-Pieńko K   +6 more
europepmc   +1 more source

Synthesis and Reactivity of Extremely Electron‐Poor Au(III) Complexes Bearing OTf− or NTf2− Ligands

open access: yesChemistry – A European Journal, Volume 32, Issue 22, 9 June 2026.
A new family of electron‐poor Au(III) cations bearing bistriflimide or triflate ligands is reported. These cations can undergo direct C─H metalation with simple arenes to give mono‐aryl cations. Subsequent addition of simple halide sources allows for reductive elimination of aryl halides, formally from Ar─H and X−. ABSTRACT The synthesis and structural
Lachlan Barwise   +6 more
wiley   +1 more source

From [NHC─H]• to Persistent σ‐Complex Radicals: Photoinduced Radical Chemistry of Imidazolium Salts

open access: yesAngewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Visible‐light excitation of electron donor–acceptor (EDA) complexes between imidazolium salts and triarylamines enables controlled single‐electron transfer (SET) and reveals a family of carbene‐centered σ‐complex radical cations. Cryogenic electron paramagnetic resonance (EPR) captures the elusive [NHC─H]• intermediate and its thermal evolution into ...
Filipp M. Kolomeychuk   +4 more
wiley   +2 more sources

Gallium‐Catalyzed Tandem Carbonyl–Olefin Metathesis/Dehydrogenative Coupling Enables Rapid Access to Cyclopentenes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
A cationic gallium(III) catalyst enables rapid construction of substituted cyclopentenes via tandem carbonyl‐ene metathesis/Friedel–Crafts coupling. Electronic tuning of alcohol electrophiles allows access to diverse, densely functionalized rings in a single operation.
Arnaud Espied   +6 more
wiley   +1 more source

Characterization of a Silver Vinylcarbene Intermediate in Carbene-Alkyne Metathesis and Its Concerted C(sp2)-H Bond Insertion. [PDF]

open access: yesJ Am Chem Soc
Díaz-Jiménez À   +10 more
europepmc   +1 more source

Silica-Supported Vanadium-oxo-alkylidene for Self-Metathesis of Propene. [PDF]

open access: yesJ Am Chem Soc
Koottanil Haridasan R   +6 more
europepmc   +1 more source

Emerging Trends in Organic Photoreactions Utilizing Disulfides

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar   +3 more
wiley   +1 more source

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