Results 121 to 130 of about 61,221 (238)
Metal-Free Aziridination of Unactivated Olefins via Transient N-Pyridinium Iminoiodinanes [PDF]
We describe a metal-free aziridination of unactivated olefins to generate N-pyridinium aziridines, which participate in cross-coupling to afford N-aryl aziridines and reductive depyridylation to afford N–H aziridines.
Isaac, Deavenport +5 more
core +2 more sources
EcoEnergy, EarlyView.This review comprehensively outlines molecular modification strategies for steering CO2 electroreduction toward C2+ products, including the classification of diverse molecular structures, elucidation of their roles in microenvironment regulation, dissection of C–C coupling pathway engineering, and forward‐looking perspectives on machine learning and ...
Lingling Peng, Hanwen Liu, Tianyou Peng
wiley +1 more source
, 1994 Methods for using novel quaternary pyridinium compounds in inhibiting acetylcholinesterase in mammals, specifically using the quaternary pyridinium compounds in the prophylaxis and treatment of organophosphate poisoning and mammalian dementia by ...
core
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu +12 more
wiley +1 more source
1H NMR evidence for the bi-pyridinium nature of the pyridine salt of H3PW12O40
, 2005 Pyridinium salts of H3PW12O40 and H3PMo12O40 were investigated by 1H NMR and IR spectroscopies. 1H NMR evidenced the formation of bi-pyridinium cation in the pyridinium salt of H3PW12O40, while a classical pyridinium cation was identified in the ...
Tuel, A. +3 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.As a metalloid with broad prospects in advanced applications, Te has not been fully clarified in terms of its intricate electrochemical behaviors across varied systems. This review systematically integrates fundamental electrochemical mechanisms, reaction kinetics identifications, and device application insights, establishing a comprehensive framework ...
Meng Zhang +6 more
wiley +1 more source
2-(hydroxymethyl)pyridinium dihydrogenphosphate
, 2003 The title compound, C6H8NO+.H2PO4-, consists of 2-(hydroxymethyl)pyridinium and dihydrogenphosphate ions. The dihydrogenphosphate moieties are linked into chains by pairs of P-O-H...O-P hydrogen bonds.
Harrison, WTA +2 more
core +1 more source
Chemical Thermodynamics and Thermal AnalysisViscosity and electrical conductivity of ternary systems (poly(ethylene oxide) + 1-alkyl-4-methyl pyridinium bromide + water) were studied. The results imply that thermodynamic quality of solvent (1-alkyl-4-methyl pyridinium bromide aqueous solutions) is
Abbas Mehrdad +2 more
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Three methylpyridine‐functionalized TEMPOs were synthesized through an electron‐rich regulation strategy. The calculation of transition states supported the highest reaction efficiency of para‐MePy‐TEMPOs, which outperformed its analogues to have the best performance of AORFBs, opening a new avenue for exploring TEMPO‐based catholytes.
Shaopeng Wang +10 more
wiley +1 more source
The title compound (systematic name: pyridinium 4-methylbenzenesulfonate), C5H6N+·C7H7O3S−, is the pyridinium salt of para-toluenesulfonic acid. In the crystal, classical N—H...O hydrogen bonds as well as C—H...O contacts connect the cationic and anionic
Richard Betz, Eric Cyriel Hosten
core +1 more source