Results 231 to 240 of about 18,004 (298)

New perspectives on the physiological basis of muscle loss

open access: yes
Experimental Physiology, EarlyView.
Alistair J. Monteyne, Marlou L. Dirks
wiley   +1 more source

A Green and Highly Selective Approach to Copper‐Catalyzed Transfer Hydrodeuteration of Alkenes and Alkynes Using D2O

open access: yesChemSusChem, Volume 19, Issue 11, 15 June 2026.
Highly selective deuteration is now possible with a green and more environmentally benign reaction protocol for Cu‐catalyzed transfer hydrodeuteration of alkenes and alkynes. This was applied to the synthesis of precisely deuterated alkanes, including deuterated complex molecules and high enantiopurity isotopomers. Precisely labeled small molecules are
Aniel J. Rivera Arzola   +5 more
wiley   +1 more source

MnCl2‐Catalyzed Photochemical Functionalization of Unactivated C(sp3)H Bonds

open access: yesChemSusChem, Volume 19, Issue 11, 15 June 2026.
A photochemical method enables the activation of alkanes, utilizing cheap and abundant MnCl2 as the photocatalyst. Alkenylation and alkylation reactions are performed, affording the desired products in good yields. Activation of inert C(sp3)H bonds is of great importance in organic synthesis, since it can functionalize unreactive molecules, such as ...
Naya A. Stini   +3 more
wiley   +1 more source

Hydrogen Isotope Exchange in Pyridine Catalyzed by an Iron(II) Imido Complex: Counterion‐Directed Regioselectivity

open access: yesAngewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Anionic high‐spin iron(II) imido complexes are catalysts for the hydrogen isotope exchange (HIE) reaction with pyridine as the substrate. The alkali metal counter‐cation plays critical roles in activating the substrate and facilitating deuteration. These complexes catalyze site‐selective α‐, α,β,γ‐, and β,γ‐deuteration of pyridine, where the counter ...
Bin Feng   +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   +1 more source

Ring‐Opening Arylation of Cyclic Diaryliodoniums via Cyclic Triaryliodanes as Aryne Precursors and Dynamic Aryl Reservoirs

open access: yesAngewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Cyclic diaryliodonium salts engage aryl Grignard reagents to trigger a self‐propagating aryne–arylation cycle. Transient cyclic triaryliodanes serve as aryne precursors and dynamic aryl reservoirs, delivering iodine‐capped teraryls with predominant meta‐selectivity. The preserved C─I bond enables outward π‐extension or inward recyclization.
Daichi Ikeshita   +2 more
wiley   +1 more source

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