Results 41 to 50 of about 1,330 (177)

Catalysis for fluorination and trifluoromethylation [PDF]

Nature, 2011
Recent advances in catalysis have made the incorporation of fluorine into complex organic molecules easier than ever before, but selective, general and practical fluorination reactions remain sought after. Fluorination of molecules often imparts desirable properties, such as metabolic and thermal stability, and fluorinated molecules are therefore ...
Takeru, Furuya, Adam S, Kamlet, Tobias, Ritter   +2 more
openaire   +2 more sources

Design and commissioning of a new synchrotron beamline dedicated to X‐ray footprinting mass spectrometry

Journal of Synchrotron Radiation, EarlyView.
A dedicated beamline at the Advanced Light Source synchrotron has been opened and commissioned for X‐ray footprinting mass spectrometry.The structural biology method of X‐ray footprinting mass spectrometry (XFMS) is available at two national synchrotron beamlines in the USA: one at the Advanced Light Source (ALS) on the West Coast and the other at the ...
Sayan Gupta, Brandon Russell, Line G. Kristensen, Jared de Chant, Anthony Lu, Lieselotte Obst-Huebl, Behzad Rad, James Tyler, Simruthi Subramanian, Savannah Kidd, Sathi Paul, Yan Chen, Christopher J. Petzold, Darren N. Kahan, Shawn M. Costello, Kei Nakamura, Jamie L. Inman, Alastair A. MacDowell, Adrian Spucces, Corie Y. Ralston   +19 more
wiley   +1 more source

CF3SO2X (X = Na, Cl) as reagents for trifluoromethylation, trifluoromethylsulfenyl-, -sulfinyl- and -sulfonylation. Part 1: Use of CF3SO2Na

Beilstein Journal of Organic Chemistry, 2017
Sodium trifluoromethanesulfinate, CF3SO2Na, and trifluoromethanesulfonyl chloride, CF3SO2Cl, are two popular reagents that are widely used for the direct trifluoromethylation of a large range of substrates.
Hélène Guyon, Hélène Chachignon, Dominique Cahard   +2 more
doaj   +1 more source

Emerging Trends in Organic Photoreactions Utilizing Disulfides

European Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar, Bolormaa Bayarkhuu, Hong Y. Cho, Jeehye Byun   +3 more
wiley   +1 more source

Regioselective 1,4-trifluoromethylation of α,β-unsaturated ketones via a S-(trifluoromethyl)diphenylsulfonium salts/copper system

Beilstein Journal of Organic Chemistry, 2013
Regioselective conjugate 1,4-trifluoromethylation of α,β-unsaturated ketones by the use of shelf-stable electrophilic trifluoromethylating reagents, S-(trifluoromethyl)diphenylsulfonium salts and copper under mild conditions is described. A wide range of
Satoshi Okusu, Yutaka Sugita, Etsuko Tokunaga, Norio Shibata   +3 more
doaj   +1 more source

Ion‐Pairing and Counterion Effects in Contemporary Photochemistry

Angewandte Chemie Novit, Volume 2, Issue 2, June 2026.
Ion‐pairing and counterion effects have emerged as fundamental yet underexplored determinants of photochemical behavior. Far from inert, counterions, and Coulombic interactions modulate excited‐state dynamics, quenching efficiencies, emission, and catalytic pathways.
Matthias Schmitz, Christoph Kerzig
wiley   +1 more source

Asymmetric Preparation of α-Quaternary Fluorinated β-keto Esters. Review

Molecules, 2020
In this review, recent advances over the past decade in the preparation of fluorinated stereogenic quaternary centers on β-keto esters compounds are analyzed.
Albert Granados, Adelina Vallribera
doaj   +1 more source

C4 Functionalization of the Isoquinoline Core via Oxidative Radical Substitution

ChemistrySelect, Volume 11, Issue 21, 4 June 2026.
The isoquinoline ring can be easily functionalized at C‐4 through a radical‐oxidative substitution process. The resulting products can be readily cyclized under basic conditions, facilitating the construction of pyranones fused to the isoquinoline scaffold. ABSTRACTIn this work, we report a straightforward synthetic procedure that enables the selective
Oscar Coral, Cesar A. Mujica‐Martinez, Alfredo Vázquez   +2 more
wiley   +1 more source

Introducing Weakly Ligated Tris(trifluoromethyl)copper(III)

ChemistryEurope
Tris(trifluoromethyl)copper(III), Cu(CF3)3, was prepared for the first time and fully characterized in the form of weakly coordinated highly reactive solvent neutral adducts (DMF)2Cu(CF3)3 and (MeCN)Cu(CF3)3.
Dr. Vladimir Motornov, Martin Procházka, Nora Alpuente, Dr. Pedro Salvador, Prof. Petr Slavíček, Dr. Blanka Klepetářová, Prof. Xavi Ribas, Dr. Petr Beier   +7 more
doaj   +1 more source

Metal- and Oxidant-Free Photoinduced Aromatic Trifluoromethylation Performed in Aerated Gel Media: Determining the Effects on Yield and Selectivity

Molecules, 2018
In this work we have investigated the potential benefits of using supramolecular gel networks as reaction media to carry out air-sensitive metal-free light-induced trifluoromethylation of six-membered (hetero)arenes under aerobic conditions.
Alex Abramov, Hendrik Vernickel, César Saldías, David Díaz Díaz   +3 more
doaj   +1 more source