Results 71 to 80 of about 2,066,464 (240)

Integrating Enzymes with Photoredox Catalysis for Conversion of Nitriles into Fluorinated Products

open access: yesChemCatChem, Volume 18, Issue 2, 28 January 2026.
Herein, we describe a novel method for producing highly sought‐after fluorinated compounds through the integration of nitrilase enzymes and iridium photoredox catalysis in a convenient one‐pot reaction. Our chemo‐ biocatalytic methodology delivers a range of fluorinated and fluoroalkylated products from simple nitrile precursors, in good yields, at ...
Stuart Angiolini   +6 more
wiley   +1 more source

Real hypervalency in a small molecule.

open access: yes, 2016
Hypervalency is defined as a molecule that contains one or more main group elements formally bearing more than eight  electrons in their  valence shell. One example of a molecule so characterised was CLi <sub> 6 </sub> [cite]10.1038/355432a0[/cite] where the description &#34;“ <em> carbon can expand its octet of electrons to ...
openaire   +1 more source

The chemical bond as an emergent phenomenon

open access: yes, 2017
We first argue that the covalent bond and the various closed-shell interactions can be thought of as symmetry broken versions of one and the same interaction, viz., the multi-center bond.
Golden, Jon C.   +2 more
core   +1 more source

Group 13 Decamethylmetallocenium Cations [PDF]

open access: yes, 2007
Salts containing the decamethylmetallocenium cations, [( C5Me5) M-2](+) ( or Cp*M-2(+)) of the group 13 "metals" B, Al and Ga have been prepared using a variety of synthetic routes.
Cowley, Alan H.   +4 more
core   +1 more source

Heterogenized PCP Pd Pincer Complexes for the Arylation of Styrenes With Iodonium Salts

open access: yesChemCatChem, Volume 18, Issue 1, 15 January 2026.
PCP‐Pd/SiO2 exhibits higher catalytic activity than its homogeneous Pd‐POCOP‐Cl counterpart in arylation. The formation of soluble Pd(0) species, retaining phosphine coordination and evolving into clusters and nanoparticles, is promoted under mild conditions, likely assisted by surface hydroxyl groups, while inactive Pd(II) species accumulate on the ...
Davi S. Leite   +6 more
wiley   +1 more source

The Chemistry of Subphthalocyanines: Synthetic Strategies for their Axial, Peripheral, and Remote Postfunctionalization

open access: yesChemistryEurope, Volume 4, Issue 1, January 2026.
From axial and peripheral reactivity to remote derivatization, the chemical versatility of subphthalocyanines (SubPcs) renders them ideal scaffolds for the design of advanced functional materials. This review assembles the synthetic toolbox, key reaction conditions, and future challenges in SubPc functionalization, guiding the development of next ...
Marta Gómez‐Gómez   +4 more
wiley   +1 more source

Synthesis of Trifluoromethylated Analogues of the Cyclic Lipopeptide Iturin A and Evaluation of their Antifungal Activity

open access: yesChemPlusChem, Volume 91, Issue 1, January 2026.
Iturin A is an antifungal lipopeptide with broad applications. Here, we present a novel synthesis and semisynthesis of trifluoromethylated iturin A analogues. Their antifungal activity was evaluated against Fusarium graminearum and Candida albicans.
Periklis Karamanis   +5 more
wiley   +1 more source

Laser‐Initiated Covalent Functionalization of Graphene Using Perfluorophenylazides with Local Addend‐Binding Control

open access: yesphysica status solidi (b), Volume 263, Issue 1, January 2026.
Laser‐induced functionalization of graphene with perfluorophenyl azides enables tuning of the electronic properties with local control. Covalent binding of nitrene radicals is achieved through hot electron injection, while Raman and Kelvin probe force microscopy provide insights into the reaction pathways, surface potential modulation, and the ...
Tamara Nagel   +3 more
wiley   +1 more source

Bromostibine complexes of iron(II): hypervalency and reactivity

open access: yes, 2014
The halostibine complexes [CpFe(CO)2(SbMe2Br)][CF3SO3] and [CpFe(CO)2(SbMe2Br)][BF4] both contain significant interactions between the anion and the formally neutral Sb(III) ligand, which simultaneously displays Lewis acidic and Lewis basic properties ...
Benjamin, Sophie L.   +4 more
core   +1 more source

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