Results 131 to 140 of about 4,722 (253)

Photosensitizing Au(I) Catalysis With Coumarins

Chemistry – A European Journal, EarlyView.
A Au(I) complex with a tethered coumarin fragment was synthesized and characterized by UV‐vis and emission spectroscopy. Its ability to facilitate photo‐driven cross‐coupling reactions through single‐electron and energy transfer events was evaluated. ABSTRACT Gold catalysis shows versatility in a wide range of challenging transformations, wherein light‐
Liliana Capulín Flores, Jacob J. van der Wal, Johannes E. M. N. Klein   +2 more
wiley   +1 more source

Organocatalytic Synthesis of Amides Using Thioacids and Anilines via Electron Donor-Acceptor Photoactivation. [PDF]

J Org Chem
Shandu MP, Ngwenya AR, Lamola JL, Moshapo PT.   +3 more
europepmc   +1 more source

Single‐Step Synthesis of Dithieno[3,2‐b:2′,3′‐e]Pyridines and Their Acid‐Dependent Optical and Photosensitising Properties

Chemistry – A European Journal, EarlyView.
The synthesis of dithieno[3,2‐b:2′,3′‐e]pyridines (DTPs) is herein reported, and their optical properties are studied both experimentally and computationally. Protonation or methylation of the nitrogen atom induced bathochromic shifts in their absorption and emission spectra.
Dominic Taylor, Matthew Wallace, Leonardo Amicosante, Gary S. Nichol, Scott J. Dalgarno, Filipe Vilela, Iain A. Wright, Neil B. McKeown   +7 more
wiley   +1 more source

Mechanistic insights and environmental ramifications of Cr(III) oxidation to Cr(VI) in soil and groundwater systems: bridging geochemical mechanisms and emerging remediation strategies. [PDF]

Environ Geochem Health
Rasool A, Pertile E, Brožová K, Halfar J, Čabanová K, Malíková P, Chromíková J, Motyka O, Drabinová S, Heviánková S.   +9 more
europepmc   +1 more source

Photochemical Rearrangement of Quinaldine 1-Oxide

Chemical and Pharmaceutical Bulletin, 1965
Ishikawa, Masayuki, Yamada, Sachiko, Kaneko, Chikara   +2 more
openaire   +3 more sources

Oxidative Generation and Reactivity of the Cyclopropyl Radical From a Martin Silicate

Chemistry – A European Journal, EarlyView.
A photoredox strategy employing Martin silicates enables the oxidative generation and controlled capture of cyclopropyl radicals, including the naked one, long considered challenging intermediates. The method affords functionalized cyclopropanes through both Giese‐type additions and dual nickel/photoredox C(sp3)−C(sp2) cross‐couplings.
Amal Lakhal, Alexandre Millanvois, Louis Fensterbank, Cyril Ollivier   +3 more
wiley   +1 more source

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

Chemistry – A European Journal, EarlyView.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes, Nia Foster, Saima Ansari, Paul Kavanagh, Paul Dingwall, Peter C. Knipe   +5 more
wiley   +1 more source

Expanding Thermodynamic and Kinetic Frontiers in Molecular Photocatalysis. [PDF]

ACS Cent Sci
Wagner DS, Spierling L, Wenger OS.
europepmc   +1 more source

A New Spin on Photocatalysis: Vortex Fluidic‐Driven Photooxidations Enabled by Solution‐Processable Microporous Polymers

Chemistry – A European Journal, EarlyView.
Newly developed polymers with intrinsic microporosity (PIMs) were combined with benzo[c][1,2,5]thiadiazole (BTZ) to be used as visible light photocatalytic coatings on the Vortex Fluidic Device (VFD). The VFD's rapid rotation and continuous flow capabilities enhanced singlet oxygen and superoxide radical reactions, achieving a dramatic eightfold ...
Leonardo Amicosante, Fiona R. Gordon, Dominic Taylor, Neil B. McKeown, Daniel M. Jubb, Stuart R. Kennedy, Marc A. Little, Filipe Vilela, Colin L. Raston, Scott J. Dalgarno   +9 more
wiley   +1 more source

Efficient Production of Reactive Oxidants by Atmospheric Bacterial-Derived Organic Matter in the Aqueous Phase. [PDF]

Environ Sci Technol
Liu Y, Li Y, Chan WL, Bao Y, Lee PKH, Nah T.   +5 more
europepmc   +1 more source