Results 181 to 190 of about 762 (245)

Highly Efficient Mechanochromic Thermally Activated Delayed Fluorescence in the Deep Red to Near‐Infrared in Copper(I) [2.2]Isoindolinophanyl‐Carbene Carbazolates

open access: yesAngewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Electrophilic [2.2]isoindolinophanyl‐based carbene iPC has been employed as charge‐transfer acceptor ligand in a series of [Cu(iPC)(carbazolate)], which show mechanochromism and environment‐dependent luminescence due to intermolecular C─‐H‐π interactions.
André M. T. Muthig   +10 more
wiley   +2 more sources

N‐Glycosyl Triazoline Glycomimetics via Huisgen Cycloaddition With an Electron‐Deficient Alkene and BF3‐Catalysed Triazoline Fragmentation to Aziridines

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
Glycomimetics with triazoline and aziridine groups were synthesised via diastereoselective Huisgen cycloaddition from glycosyl azides. Density functional theory was applied to define the mechanism for BF3 promoted aziridine formation. Triazoline and aziridine derivatives were synthesised by diastereo‐ and regioselective Huisgen cycloaddition of 2,3,4,6‐
Aaron McCormack   +4 more
wiley   +1 more source

Mechanochemical Hydrodeoxygenations

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
A silver‐catalyzed mechanochemical hydrodeoxygenation with triethylsilane as reductant allows to convert ketones to the corresponding methylene derivatives in good yields after a short reaction time. Selected examples show that also alcohols, ethers, and sulfoxides can react. In this work, a mechanochemical hydrodeoxygenation (HDO) was developed. Using
Lena M. Hanek, Carsten Bolm
wiley   +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

Gold(I)‐Catalyzed C(sp3)–C(sp) Cross‐Coupling: Access to Alkynylated Tetrahydrofuran Derivatives

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 11, 3 June 2026.
An Au(I)‐catalyzed C(sp3)–C(sp) cross‐coupling, unsuccessful under photosensitized conditions for vinylgold(I) complexes, is achieved using MeDalPhosAuCl under thermal conditions, giving alkynylated tetrahydrofuran derivatives. The reaction proceeds via an Au(III) intermediate formed by oxidative addition of an alkynyl iodide.
Jorge C. Herrera‐Luna   +7 more
wiley   +1 more source

Counterion Effects Enable Divergent Pd‐Catalyzed Carbonylative Cyclization of Amide‐Tethered o‐Alkynylphenols

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 11, 3 June 2026.
The catalytic carbonylation of alkynes is a powerful route to heteroaromatic scaffolds, yet achieving regioselectivity remains challenging. Herein, we report a divergent carbonylative cyclization of 2‐alkynylphenol derivatives that affords either coumarins (6‐endo‐dig) or 2‐coumaranones (5‐exo‐dig) by tuning the palladium‐based catalytic system. Pd(OAc)
Aleksandr Voronov   +11 more
wiley   +1 more source

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