Results 171 to 180 of about 24,787 (265)

Cycloaddition reactions of nitrosoalkenes, azoalkenes and nitrile oxides mediated by hydrotalcite

open access: yesARKIVOC, 2010
Americo Lemos, João Paulo Lourenço
doaj   +1 more source

Challenges in Elucidating the Free Energy Scheme of the Laccase Catalyzed Reduction of Oxygen

open access: yesChemCatChem, Volume 15, Issue 1, January 9, 2023., 2023
Bioinorganic chemistry: High potential variants of the multicopper enzyme laccase have a remarkably low overpotential for the oxygen reduction reaction (ORR). Understanding the precise underlying principles are potentially of great value in light of the energy transition wherein the ORR plays a crucial role.
Daan den Boer   +3 more
wiley   +1 more source

Plant‐based Basic Carbocatalyst for Lactone Ring‐Opening Polymerization and Isosorbide Transesterification with High Efficiency

open access: yesChemCatChem, Volume 15, Issue 1, January 9, 2023., 2023
Carbocatalysis: The synthesized basic carbocatalyst showed high performance in two different base‐catalyzed reactions namely ϵ‐caprolactone ring‐opening polymerization to biodegradable polycaprolactone, as well as isosorbide transesterification to isosorbide bis(methyl carbonate).
Majd Al‐Naji   +3 more
wiley   +1 more source

Photocatalytic Generation of a Ground‐State Electron Donor Through Water Activation

open access: yesAngewandte Chemie International Edition, EarlyView.
This study presents catalytically generated phosphine oxide radical anions, derived from commercial phosphines and water as potent single‐electron reductants capable of reducing electron‐rich aryl chlorides at potentials as low as −3.3 V (vs. SCE). Cyclic voltammetry studies and DFT calculations offer insights into these P‐based ground‐state electron ...
Maxim‐Aleksa Wiethoff   +2 more
wiley   +1 more source

Allenylidene Phosphonium Ion: An Isoelectronic Phosphorus Analogue of [3]Cumulene

open access: yesAngewandte Chemie International Edition, EarlyView.
We report the first isolobal and isoelectronic incorporation of a phosphorus atom into a [3]cumulene. This trigonal planar phosphonium allenylidene demonstrates exceptional Lewis acidity via a π* acceptor orbital and exhibits unique reactivity through a reversible intramolecular dearomative [2 + 2] cycloaddition reaction.
Lucas C. Torres   +8 more
wiley   +1 more source

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