Results 121 to 130 of about 13,653 (246)
A modular approach to prepare enantioenriched cyclobutanes: synthesis of (+)-rumphellaone A [PDF]
, 2019 A modular synthesis of enantioenriched polyfunctionalized cyclobutanes was developed that features an 8-aminoquinolinamide directed C–H arylation reaction. The C–H arylation products were derivatized through subsequent decarboxylative coupling processes.
Beck, Jordan C. +3 more
core +1 more source
European Journal of Organic Chemistry, EarlyView.A set of 3‐sulfonyl‐azaspiro[4.5]trienones have been obtained via a metal‐ and photocatalyst‐free visible‐light‐driven dearomative strategy. The protocol exploits arylazo sulfones, which act simultaneously as the light absorber and sulfonyl‐radical source, enabling ipso‐spirocyclization of differently substituted N‐aryl propiolamides.
Luca Nicchio +5 more
wiley +1 more source
European Journal of Organic Chemistry, EarlyView.A new photocatalyst for the aerobic photochemical oxidation of sulfides to sulfoxides is described under really low catalyst loading (0.01 mol%) and methanol as the green solvent. The chemoselective oxidation of sulfides to sulfoxides is accomplished using a new family of photocatalysts, namely 1,2,6‐thiadiazin‐4‐ones. Utilizing a low catalyst loading (
Charikleia I. Karaousta +6 more
wiley +1 more source
On the Structure and Redox Behavior of Ni and Cu Single Atoms Supported on Carbon Nitride
Angewandte Chemie, Volume 138, Issue 19, 4 May 2026.Magnetic and electronic spectroscopies, combined with DFT, establish the MN4 binding site of Ni and Cu single atoms on carbon nitride and elucidate their redox photochemistry. Ni undergoes geometry‐preserving, reversible M2+/M+ cycling, whereas Cu collapses to an irreversible low‐coordinate Cu+ state, suppressing photocatalysis.
Giovanni Colonnello +13 more
wiley +2 more sources
European Journal of Organic Chemistry, EarlyView.A cascade reaction under phase‐transfer conditions between 3‐nitro indoles and isocyanomethylene dibenzenes affords the construction of pyrrolo[3,4‐b]indole cores. Control experiments provide insight into moderate product yields and clarify why the reaction is not amenable to asymmetric induction. A cascade reaction enabling the construction of pyrrolo[
Ana Mikleušević +4 more
wiley +1 more source
Targeted Derivatization of Medicines via Novel C-H Functionalization [PDF]
, 2015 The most ubiquitous bond in pharmaceuticals rests between carbon and hydrogen and until recently, however, the C-H bond has been ignored as a target for synthetic manipulation because of its inherently inert nature and the significant energetic ...
Chopko, Trevor
core
European Journal of Organic Chemistry, EarlyView.A new series of structurally rich polyaromatic isonitriles is presented as photoredox catalysts. Their photophysical properties are investigated by UV–Vis absorption and fluorescence measurements, combined with experimental and theoretical studies to evaluate both ground‐ and excited‐state redox properties.
Cristina Martini +9 more
wiley +1 more source
Structural Dynamics, 2019 Photoredox catalysis of chemical reactions, using light-activated molecules which serve as electron donors or acceptors to initiate chemical transformations under mild conditions, is finding widespread use in the synthesis of organic compounds and ...
Andrew J. Orr-Ewing
doaj +1 more source
Electron, EarlyView.We implement a suite of steady‐state and time‐resolved spectroscopic techniques to elucidate the zinc‐mediated photodegradation of nitrophenols in aqueous solution. From ultrafast electronic spectroscopy of aci‐nitrophenol on femtosecond‐to‐nanosecond timescales to tracking photoproducts with absorption and vibrational signatures (through ground‐state ...
Taylor D. Krueger +4 more
wiley +1 more source
Small, EarlyView.Amino acid‐derived Cu(II)‐dithiocarbamates were synthesized as water‐soluble single‐source precursors for low‐temperature hydrothermal decomposition toward covellite (CuS) nanoparticles. Their decomposition followed a reduction‐mediated pathway via Cu(I)‐dithiocarbamate intermediates, with the reduction step being rate‐limiting and readily tunable ...
Xiang Xu +8 more
wiley +1 more source