Results 21 to 30 of about 300 (133)

Determining the predominant tautomeric structure of iodine-based group-transfer reagents by 17O NMR spectroscopy

Beilstein Journal of Organic Chemistry, 2018
Cyclic benziodoxole systems have become a premier scaffold for the design of electrophilic transfer reagents. A particularly intriguing aspect is the fundamental II–IIII tautomerism about the hypervalent bond, which has led in certain cases to a ...
Nico Santschi, Cody Ross Pitts, Benson J. Jelier, René Verel   +3 more
doaj   +1 more source

Recent advances in transition metal-catalyzed Csp2-monofluoro-, difluoro-, perfluoromethylation and trifluoromethylthiolation

Beilstein Journal of Organic Chemistry, 2013
In the last few years, transition metal-mediated reactions have joined the toolbox of chemists working in the field of fluorination for Life-Science oriented research.
Grégory Landelle, Armen Panossian, Sergiy Pazenok, Jean-Pierre Vors, Frédéric R. Leroux   +4 more
doaj   +1 more source

Deoxygenative trifluoromethylthiolation of carboxylic acids

Chemical Science, 2019
A deoxygenative trifluoromethylthiolation method produces trifluoromethyl thioesters from readily available carboxylic acids.
Runze Mao, Srikrishna Bera, Alexis Cheseaux, Xile Hu   +3 more
openaire   +4 more sources

Aryl Silicon Nucleophiles in Bismuth Catalysis

Angewandte Chemie, Volume 137, Issue 13, March 24, 2025.
A seminal example of aryl silicon nucleophiles in Bi catalysis is reported, in the context of the synthesis of aromatic fluorinated thiosulfones. The protocol is compatible with a wide range of anionic and neutral Ar‐Si compounds, including heterocycles. Stoichiometric investigations of individual organometallic steps provide strong evidence supporting
Teresa Faber, Sophia Engelhardt, Josep Cornella   +2 more
wiley   +2 more sources

Diselenide‐Catalyzed Asymmetric Allenylation of Alkynes

European Journal of Organic Chemistry, Volume 29, Issue 11, 16 March 2026.
An asymmetric allenylation of alkynes is described using chiral lactamides‐based diselenides under oxidative conditions. This led to the corresponding allenylamides with enantiomeric excesses up to 72%, and uncovers an interesting stereodivergency feature related to the β‐H‐syn‐elimination of transient Se(IV) intermediates.
Rongyu Sun, Emilie Viaud, Murielle Berlande, Stéphane Quideau, Patrick Y. Toullec, Philippe A. Peixoto   +5 more
wiley   +1 more source

Metal-Free Trifluoromethylthiolation of Arylazo Sulfones

The Journal of Organic Chemistry, 2020
A visible-light-driven protocol for the synthesis of aryl trifluoromethyl thioethers under photocatalyst- and metal-free conditions has been pursued. The procedure exploits the peculiar properties of arylazo sulfones (having electron-rich or electron-poor substituents on the (hetero)aromatic ring) as photochemical precursors of aryl radicals and S ...
Ankun Li, Yuxuan Li, Junjie Liu, Jingqi Chen, Kui Lu, Di Qiu, Maurizio Fagnoni, Stefano Protti, Xia Zhao   +8 more
openaire   +4 more sources

Applications of N─F─Based Reagents in the Synthesis of Organochalcogen Compounds

Asian Journal of Organic Chemistry, Volume 14, Issue 12, December 2025.
Herein, we provide a comprehensive review of recent advances in synthetic strategies to access organochalcogen‐decorated compounds using N─F reagents as efficient oxidants for converting chalcogen–chalcogen bonds into electrophilic chalcogen‐based species.
Thiago Anjos, Mateus W. Rambo, Damiano Tanini, Alan Diego C. Santos, Ricardo F. Schumacher, Filipe Penteado   +5 more
wiley   +1 more source

Cp*Co(III)‐catalyzed C–H functionalization of bioactive heterocyclic motifs

Bulletin of the Korean Chemical Society, Volume 46, Issue 6, Page 622-635, June 2025.
Directed carbon–hydrogen bond functionalization of biologically active scaffolds is attractive as it enables the selective modification of sophisticated structures, enhancing the efficiency of drug development by adopting diverse functional groups. This review summarizes recent advances in cobalt‐catalyzed C–H functionalizations of bioactive motifs ...
Yeongmi Park, Junbeom Park, Yong Ho Lee, Jongwoo Son   +3 more
wiley   +1 more source

A journey into trifluoromethylchalcogenation: some reagents from Lyon

Comptes Rendus. Chimie
The development of emerging fluorinated groups is an active field of research in recent years. In particular, the fusion of fluorinated moieties with chalcogens has attracted considerable interest.
Billard, Thierry
doaj   +1 more source

Continuous Flow Technology Enabling Photochemistry

Advanced Synthesis &Catalysis, Volume 367, Issue 9, May 6, 2025.
Abstract The merger of continuous flow technology and modern photochemistry has enabled countless applications showcasing new opportunities for chemical synthesis demonstrating improvements in selectivity, safety, sustainability and scalability. This focused review aims to highlight a selection of recently published case studies from academic and ...
Ruairi Crawford, Marcus Baumann
wiley   +1 more source