Results 31 to 40 of about 448 (148)

Synthesis of some fluorinated thiazolopyridine from pentafluoropyridine and 4-phenylsulfonyl tetrafluoropyridine [PDF]

, 2015
In this study, the reaction of pentafluoropyridine and 4-phenylsulfonyl tetrafluoropyridine with difunctional nitrogen and sulfur nucleophiles such as thiourea, thioamide derivatives, and unsymmetrical bidentate nitrogen nucleophiles such as diamino ...
Danesteh, Roghayeh, Ranjbar-Karimi, Reza, Beiki-Shoraki, Khalil   +2 more
core   +1 more source

2,3,5,6-Tetrafluoro-[N-(3-aminopropyl)-ε-caprolactam]-4-pyridine

Molbank
The title compound was synthesized at a near-quantitative yield using the nucleophilic aromatic substitution of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) with perfluoropyridine (PFP). The purity and structure were determined by NMR (1H, 13C, 19F), GC-EIMS,
Chadron M. Friesen, Nathan J. Weeks, Scott T. Iacono   +2 more
doaj   +1 more source

Oxidative Addition Versus Substitution Reactions of Group 14 Dialkylamino Metalylenes with Pentafluoropyridine

, 2016
Dialkylamino compounds of group 14 elements (Si, Ge, Sn) in the +2 oxidation state supported by benzamidinate ligands were synthesized and treated with pentafluoropyridine.
Amit Pratap Singh (1958941), Dietmar Stalke (1407541), Sankaranarayana Pillai Sarish (1997197), Prinson P. Samuel (1407544), Ina Objartel (1997203), Herbert W. Roesky (560521), Julia Matussek (1997200)   +6 more
core   +1 more source

Transient isomerisation and inverse electronic relaxation of infrared multiple-photon excited Pentafluoropyridine [PDF]

, 1988
Pentafluoropyridine (PFP) undergoes fast structural isomerisation to fulvenes when irradiated with 9R(16) CO2 laser line in the fluence range 0.5-1.5 J/cm2. The unstable fulvenes slowly decay back to PFP in ms time scale.
Chowdhury, P. K., Rama Rao, K. V. S., Mittal, J. P.   +2 more
core   +1 more source

Influence of the Diphosphine Coordinated to Molybdenum and Tungsten Triangular M3S4 Cluster Hydrides in the Catalytic Hydrodefluorination of Pentafluoropyridine [PDF]

, 2015
Hydrido molybdenum and tungsten(IV) cluster cations of formula [M3S4H3(dppe)3]+ (dppe = 1,2-(bis)dimethylphosphinoethane), [Mo-1]+ (M = Mo) and [W-1]+ (M = W), have been isolated by reacting their halide precursors with borohydride.
Llusar, Rosa, Feliz Rodríguez, Marta, Beltrán Álvarez, Tomás Francisco, Alfonso Padilla, Carmina   +3 more
core   +1 more source

Amine‐Ligated Boryl Radicals Enables Direct C─F Borylation and Cross‐Couplings of Polyfluoroarenes

Angewandte Chemie, Volume 137, Issue 46, November 10, 2025.
We present a synergistic strategy combining photocatalytic direct C─F borylation of polyfluoroarenes with Suzuki–Miyaura cross‐coupling. The high nucleophilicity of amine‐ligated boryl radicals enables efficient homolytic aromatic substitution of polyfluoroarenes, forming stable amine–borane adducts that resist protodeboronation and can be directly ...
Naoki Yasukawa, Waka Okada, Marc Fimm, Rio Kawamura, Ryota Nomura, Tsunayoshi Takehara, Takeyuki Suzuki, Daniele Leonori, Shuichi Nakamura   +8 more
wiley   +2 more sources

Speciation‐Controlled C–F Bond Functionalization Enabled by Zwitterionic Pnictinidenes

Angewandte Chemie International Edition, EarlyView.
Zwitterionic pnictinidenes turn C–F activation into C–X bond construction, enabling broad defluorinative functionalization of polyfluoro(hetero)arenes under mild conditions. Rather than following a metallomimetic Sb(I)/Sb(III) redox turnover, catalysis is redirected by ligand scrambling into a redox‐neutral manifold, revealing catalyst speciation as a ...
Irene Sánchez‐Sordo, Sergio Fernandez, Selwin Fernando, Diego M. Andrada, Oriol Planas   +4 more
wiley   +1 more source

Main Group Metals in Redox Catalysis

European Journal of Inorganic Chemistry, Volume 29, Issue 22, 1 August 2026.
Main group metal redox catalysis is emerging as a credible alternative to transition metal chemistry. Elements from groups 13 to 15 now enable diverse catalytic manifolds, driven by ligand design and control of electronic structure. This review highlights recent advances, key design principles, and remaining challenges, positioning main group metals as
Olympia Mouriki, Alba Martinez‐Bascuñana, Oriol Planas   +2 more
wiley   +1 more source

Trigonal Phosphine Umpolung: Electrophilicity Driven by a Redox‐Active Boron Cluster

Chemistry – A European Journal, Volume 32, Issue 27, 17 July 2026.
Coupling of a phosphine to a redox‐active cluster enables polarity reversal, or umpolung, at phosphorus. Phosphines are classically known for their nucleophilicity, and while electrophilic reactivity has been observed in geometrically constrained, non‐trigonal systems, similar behavior in ordinary trigonal phosphines is rare.
Bryce C. Nussbaum, Mark D. Smith, Dmitry V. Peryshkov   +2 more
wiley   +1 more source

Pyridine-containing polymers/graphene oxide composites: synthesis, characterization, and application for the recovery of phenolic compounds

Polymer Testing
In this study, novel polymer/graphene oxide (GO) composites were engineered for the adsorption and recovery of phenolic compounds from olive mill wastewater.
Naila Mraieh, Ibtissem Jlalia, Nicole Jaffrezic-Renault, Regis Mercier, Steffen Weidner, Agnès Crepet, Catherine Marestin, Saber Chatti, Houyem Abderrazak, Emmanuel Beyou   +9 more
doaj   +1 more source