Results 211 to 220 of about 456,190 (296)

Radical, Not Ionic: The Mechanochemical Zincke Nitration of Phenols

open access: yesAngewandte Chemie, EarlyView.
Mechanochemistry recasts the classical Zincke nitration as an open‐shell process. Liquid‐assisted vibrational milling of phenols with in situ HNO2 delivers direct and ipso nitration across 50 substrates, while atmosphere, NOx‐transfer, EPR and DFT evidence expose a phenoxyl‐radical/NO2 manifold underlying this historically ionic transformation ...
Roberto Scipione   +7 more
wiley   +2 more sources

Solventless Catalytic C-H and C-X Functionalization without Ball Milling. [PDF]

open access: yesJ Org Chem
Méndez-Gálvez C   +5 more
europepmc   +1 more source

Magnesium‐Retention Assisted Synthesis of High‐Performance Zintl Thermoelectrics

open access: yesAngewandte Chemie, EarlyView.
Mg volatilization and chemical instability during high‐temperature synthesis hinder the scalable fabrication of Mg‐based thermoelectrics. Here, a magnesium‐retention assisted synthesis (MRAS) strategy stabilizes Mg using a sacrificial Mg reservoir and an inert‐gas‐regulated melting environment.
Boxuan Hu   +9 more
wiley   +2 more sources

Effects of Ball Milling Time and Sintering Temperature on the Microstructure and Mechanical Properties of Mg-Al-Ti Alloy. [PDF]

open access: yesMaterials (Basel)
Qian D   +10 more
europepmc   +1 more source

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