Results 31 to 40 of about 1,330 (177)

Photo-driven redox-neutral decarboxylative carbon-hydrogen trifluoromethylation of (hetero)arenes with trifluoroacetic acid

Nature Communications, 2017
C–H bond functionalization has become an important tool for many organic transformations, however such reactions typically require stoichiometric amounts of external oxidants.
Jin Lin, Zhi Li, Jian Kan, Shijun Huang, Weiping Su, Yadong Li   +5 more
doaj   +1 more source

High-Valent Ni^III and Ni^IV Species Relevant to C–C and C–Heteroatom Cross-Coupling Reactions: State of the Art

Molecules, 2020
Ni catalysis constitutes an active research arena with notable applications in diverse fields. By analogy with its parent element palladium, Ni catalysts provide an appealing entry to build molecular complexity via cross-coupling reactions.
Noel Nebra
doaj   +1 more source

Trifluoromethylation of Secondary Nitroalkanes [PDF]

Organic Letters, 2017
Using a commercially available Umemoto's reagent, the metal-free trifluoromethylation of nitroalkanes is now possible. This method provides a general, high-yielding synthesis of α-(trifluoromethyl)nitroalkanes. The quaternary α-(trifluoromethyl)nitroalkanes obtained from this transformation can be elaborated to a variety of complex nitrogen-containing ...
Amber A. S. Gietter-Burch, Vijayarajan Devannah, Donald A. Watson   +2 more
openaire   +2 more sources

Copper-catalyzed trifluoromethylation of alkenes: synthesis of trifluoromethylated benzoxazines

Organic & Biomolecular Chemistry, 2015
A ligand and base free copper catalyzed method has been developed for the construction of trifluoromethylated benzoxazines by using Umemoto's reagent.
Sadhan Jana, Athira Ashokan, Shailesh Kumar, Ajay Verma, Sangit Kumar   +4 more
openaire   +3 more sources

Carbon–carbon bond cleavage for Cu-mediated aromatic trifluoromethylations and pentafluoroethylations

Beilstein Journal of Organic Chemistry, 2015
This short review highlights the copper-mediated fluoroalkylation using perfluoroalkylated carboxylic acid derivatives. Carbon–carbon bond cleavage of perfluoroalkylated carboxylic acid derivatives takes place in fluoroalkylation reactions at high ...
Tsuyuka Sugiishi, Hideki Amii, Kohsuke Aikawa, Koichi Mikami   +3 more
doaj   +1 more source

Aryl and Alkyl Radiotrifluoromethylation via Metallaphotoredox‐Mediated Radical Cross‐Coupling

Angewandte Chemie, Volume 138, Issue 16, 13 April 2026.
The metallaphotoredox‐mediated radiotrifluoromethylation of arenes and alkanes is described. The operationally simple protocols make use of substrates bearing thianthrenium salts (TT) or N‐hydroxyphthalimide (NHPI) esters and CF218FI. The reaction proceeds through a Ru‐mediated radical formation followed by a Cu‐mediated radical cross‐coupling step and
Lukas Veth, Albert D. Windhorst, Danielle J. Vugts   +2 more
wiley   +2 more sources

CF3SO2X (X = Na, Cl) as reagents for trifluoromethylation, trifluoromethylsulfenyl-, -sulfinyl- and -sulfonylation and chlorination. Part 2: Use of CF3SO2Cl

Beilstein Journal of Organic Chemistry, 2017
The recent progresses of the application of trifluoromethanesulfonyl chloride, CF3SO2Cl, in the formation of C–CF3, C–SCF3, C–SOCF3, and C–Cl bonds are summarised in this second part of a two-part review published back-to-back on both sodium ...
Hélène Chachignon, Hélène Guyon, Dominique Cahard   +2 more
doaj   +1 more source

Iron(II)-catalyzed trifluoromethylation of vinylcyclopropanes

上海师范大学学报. 自然科学版, 2016
An efficient iron(II)-catalyzed trifluoromethylation of vinylcyclopropanes was developed.A series of CF3-containing dihydronaphthalene derivatives were prepared with a moderate to high yield.This method offers several advantages in terms of its mild ...
LI Zongrui, DENG Qinghai
doaj   +1 more source

Decoupling Redox Potentials and Excited State Energies in Substituted Chromium(III) Chromophores

Chemistry – A European Journal, EarlyView.
Redox and excited state properties of organic and precious metal CT photocatalysts are strongly entangled. In contrast, redox potentials of polypyridine chromium(III) complexes, that feature purely metal‐centered SF states, are selectively tuned by incremental substituent effects of the CF3 group, while excited state energies and lifetimes remain ...
Steven Sittel, Dimitri Zorn, Alexandra König, Jonas Marcel Grenz, Christoph Förster, Robert Naumann, Katja Heinze   +6 more
wiley   +1 more source

Main Group Metals in Redox Catalysis

European Journal of Inorganic Chemistry, EarlyView.
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