Results 301 to 310 of about 53,297 (369)

Tackling the Reactivity of Propadiene: Palladium Metallaphotoredox Dual Catalyzed Multi‐Component Allylation and Dienylation of Styrenes

open access: yesAngewandte Chemie, EarlyView.
We presented herein that propadiene can chemodivergently form either an allylic moiety or a dienylic moiety under Pd catalysis. Embedding this reactivity pattern into photocatalysis with DHP as the initial radical source and styrene derivatives as the initial acceptor leads to multi‐component allylation and dienylation.
Yi‐Fei Yang   +2 more
wiley   +1 more source

Metal‐Organic Framework/Organocatalyst Combinations as Powerful Multicatalytic Systems for Aerobic Oxidations

open access: yesAngewandte Chemie, EarlyView.
A multicatalytic strategy based on the simple combination of metal‐organic frameworks (MOFs) and organocatalysts is able to mediate challenging aerobic oxidation reactions. The use of earth‐abundant MOFs and commercially available (hydro)quinone co‐catalysts greatly simplify the generation of powerful multicatalytic systems, opening the door for the ...
Juan Camilo Arango‐Daza   +5 more
wiley   +1 more source

Enhanced Resolution in EPR Spectroscopy Using para‐Hydrogen Matrices

open access: yesAngewandte Chemie International Edition, EarlyView.
We demonstrate the advantageous properties of solid para‐hydrogen (p‐H2) matrices for electron paramagnetic resonance (EPR) spectroscopy by investigating the 2,2,6,6‐tetramethylpiperidinyloxyl (TEMPO) radical and an in situ generated P‐centered mono‐radical.
Adrián Portela‐González   +2 more
wiley   +1 more source

Harnessing Cooperative Energy Transfer and Hydrogen Atom Transfer for Direct Nitrogenations of Non‐Activated Alkanes

open access: yesAngewandte Chemie International Edition, EarlyView.
Cooperative EnT & HAT: New solution for direct C─N coupling of unactivated alkanes. Metal‐free photocatalytic nitrogenation. Use of unactivated alkanes. Original reaction pathway. Abstract While important progress has been achieved recently on direct functionalization of alkanes via photocatalytic methods, direct amination of aliphatic compounds ...
Sai Teja Kolla   +4 more
wiley   +1 more source

Programmed His Bundle Pacing

open access: yesCirculation-Arrhythmia and Electrophysiology, 2019
Jastrzębski, Marek   +5 more
openaire   +3 more sources

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