Results 11 to 20 of about 22,231 (296)

Methodologies for selective electrophilic fluorination [PDF]

open access: yes, 2004
Chapter 1 Chapter 1 contains a discussion of the effects of the introduction of fluorine atoms into organic molecules. A review of electrophilic fluorination reactions which have been reported recently, from the viewpoint of selectivity is given. Chapter
Nakano, Takashi
core   +6 more sources

Ring-Opening Fluorination of Bicyclic Azaarenes [PDF]

open access: yes, 2021
We have discovered a ring-opening fluorination of bicyclic azaarenes. Upon treatment of bicyclic azaarenes such as pyrazolopyridines with electrophilic fluorinating agents, fluorination of the aromatic ring is followed by a ring-opening reaction ...
Kenta, Kato   +6 more
core   +2 more sources

Ring-Opening Fluorination of Isoxazoles [PDF]

open access: yes, 2022
A ring-opening fluorination of isoxazoles has been developed. By treating isoxazoles with an electrophilic fluorinating agent (Selectfluor®), fluorination followed by deprotonation leads to tertiary fluorinated carbonyl compounds.
Junichiro, Yamaguchi   +4 more
core   +2 more sources

Manganese-Porphyrin-Catalyzed C-H Fluorination: Hydrocarbons, But Not Drugs? [PDF]

open access: yes, 2022
Transformation of C-H to C-F bonds in organic compounds can be used in drug design to easily diversify molecular series under exploration. A particularly attractive fluorination reaction is the recently discovered aliphatic C-H bonds fluorination ...
Anton, Sinitskiy   +2 more
core   +1 more source

Developing simple boranes as phase transfer catalysts for nucleophilic fluorination using CsF [PDF]

open access: yes, 2021
Despite the general high fluorophilicity of boron, simple organoboranes such as BEt3 and 3,5-(CF3)2C6H3–BPin are shown herein for the first time, to our knowledge, to be effective phase-transfer catalysts for the fluorination of organohalides with CsF ...
Sven, Kirschner   +4 more
core   +1 more source

Anodic Fluorination and Cathodic Michael Addition of Schiff Bases Bearing Trifluoromethyl and Ester Groups

open access: yesElectrochemistry, 2021
Anodic fluorination of N-(diphenylmethyleneamino)-2,2,2-trifluoroethane and N-[bis(methylthio)methyleneamino]-2,2,2-triphenylethane in acetonitrile containing poly(HF) salt ionic liquids afforded monofluorinated products in moderate to good yields.
Nanae IMAI   +2 more
doaj   +1 more source

Mechanisms for surface potential decay on fluorinated epoxy in high voltage DC applications [PDF]

open access: yes, 2014
Epoxy resin has been extensively used for decades as an insulation material in high voltage transmission systems. However, this insulation material does suffer from bulk and surface charging when used as insulating spacer, mainly in high voltage DC ...
Z. An   +7 more
core   +1 more source

Electrochemical Fluorination of Vinyl Boronates Through Donor-Stabilized Vinyl Carbocation Intermediates [PDF]

open access: yes, 2021
The electrochemical generation of vinyl carbocations from vinyl boronic esters and boronates is reported. Using easy-to-handle nucleophilic fluoride reagents, these intermediates are trapped to form fully substituted vinyl fluorides. Mech-anistic studies
Benjamin, Wigman   +4 more
core   +1 more source

Impact of Fluorination Degree of Ether-Based Electrolyte Solvent on Li-metal Battery Performance [PDF]

open access: yes, 2023
Electrolytes using fluorinated solvents have proven effective in improving the cycling life of Li-metal batteries, by forming a robust solid-electrolyte interphase through decomposition of anion and fluorinated solvent molecules. Herein, we modulated the
Yi, Cui   +9 more
core   +2 more sources

Introduction of Fluorine and Fluorine‐Containing Functional Groups [PDF]

open access: yesAngewandte Chemie International Edition, 2013
AbstractOver the past decade, the most significant, conceptual advances in the field of fluorination were enabled most prominently by organo‐ and transition‐metal catalysis. The most challenging transformation remains the formation of the parent CF bond, primarily as a consequence of the high hydration energy of fluoride, strong metal—fluorine bonds ...
Liang, Theresa   +2 more
openaire   +5 more sources

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