Results 31 to 40 of about 1,340 (176)
Small, EarlyView.Bio‐based oxime esters are converted into efficient metal‐free photoinitiators for 405 nm LEDs and sunlight by Dexter‑type triplet energy transfer from ITX, enabling fast and deep visible light curing, high‐resolution 3D printing and improved cytocompatibility.
Kaidan Yang +10 more
wiley +1 more source
Chimica Techno Acta, 2017 This review summarizes data on the reactions of chromones and activated alkenes with trimethyl(trifluoromethyl)silane (Ruppert’s reagent), which occures as a nucleophilic 1,4-trifluoromethylation with high regioselectivity and good yields.
V. Ya. Sosnovskikh, G.-V. Roshentaler
doaj +1 more source
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 +4 more
openaire +3 more sources
Synthesis of Trifluoromethylated Monoterpene Amino Alcohols
Molecules, 2022 For the first time, monoterpene trifluoromethylated β-hydroxy-benzyl-O-oximes were synthesized in 81–95% yields by nucleophilic addition of the Ruppert–Prakash reagent (TMSCF3) to the corresponding β-keto-benzyl-O-oximes based on (+)-nopinone ...
Polina A. Petrova +5 more
doaj +1 more source
Mechanochemistry as an Emerging Tool for Organofluorine Chemistry
Chemistry–Methods, Volume 6, Issue 8, August 2026.Fluorinated scaffolds are central across many areas of chemistry, driving the demand for efficient and sustainable synthetic methods. Mechanochemistry has emerged as a powerful alternative to conventional approaches, offering reduced environmental impact, shorter reaction times, and unique reactivity and selectivity.
Marie Caldiero +3 more
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
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 +2 more
wiley +1 more source
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 +3 more
doaj +1 more source
The C3-H Bond Functionalization of Quinoxalin-2(1H)-Ones With Hypervalent Iodine(III) Reagents
Frontiers in Chemistry, 2020 The modification of quinoxalin-2(1H)-ones via direct C-H bond functionalization has begun to receive widespread attention, due to quinoxalin-2(1H)-one derivatives' various biological activities and pharmaceutical properties. This mini review concentrates
Yushi Tan +4 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 +2 more
wiley +2 more sources