Results 101 to 110 of about 3,385 (223)

From o‐Phenylenediamine to Flavin Derivatives: A Potential Prebiotic Carbon Skeleton Expansion With Formaldehyde, Cyanide, and CO2

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
A Strecker‐type reaction of aromatic ortho‐diamines with various aldehydes and cyanide assembles the bicyclic amidine core of flavin‐derived heterocycles under mild conditions. Subsequent oxidation, radical or photochemical cyanation, carboxylation with CO2, and CO2‐mediated cyclization build the three‐ring alloxazine scaffold. This sequence provides a
Christian Held, Rodrigo José da Silva Lima, Ji‐Woong Lee   +2 more
wiley   +1 more source

Contribution of One‐Electron Oxidation of Purine and Pyrimidine Bases to the Photo‐ and Radiation‐Induced Damage to Cellular DNA

ChemPhysChem, Volume 27, Issue 15, 14 August 2026.
One‐electron oxidation of purine and pyrimidine bases of isolated and cellular DNA generates related reactive base radical cations that are converted into final decomposition products through deprotonation and hydration. In the case of guanine, the most susceptible nucleobase to one‐electron oxidants, 8‐hydroxy‐7,8‐dihydroguanyl radical, thus formed by
Jean Cadet, Dimitar Angelov, Paolo DI Mascio, J. Richard Wagner   +3 more
wiley   +1 more source

A Hands‐On Guide to Open‐Shell Calculations in Organic Chemistry: Radical Chemistry, Single Electron Transfer, and Energy Transfer

European Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.
Molecules with unpaired electrons, also known as open‐shell systems, are key intermediates in several light‐mediated or metal‐catalyzed transformations in organic chemistry. However, modeling this chemistry by density functional theory calculations is challenging.
Nil Sanosa, Diego Sampedro, Ignacio Funes‐Ardoiz   +2 more
wiley   +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, Nicolas Delcroix, Vitalii Solomin, Thomas Castanheiro   +3 more
wiley   +1 more source

Counterion Effects on the Properties and Reactivity of Charged Photoredox Catalysts

ChemPhotoChem, Volume 10, Issue 8, August 2026.
The choice of a counterion for a charged photocatalyst has long been overlooked. In this review, we summarize recent reports on counterion effects in photocatalysis, providing readers with a comprehensive theoretical understanding and synthetic applications for the use of a carefully chosen counterion. Electrostatic interactions represent the strongest
Elina K. Taskinen, Burkhard König
wiley   +1 more source

Gold(I) Phosphine/Phosphido‐Borohydride Complexes

European Journal of Inorganic Chemistry, Volume 29, Issue 22, 1 August 2026.
Synthesis, structure, and electrochemical characteristics of a homologous series of gold(I) complexes featuring phosphine and phosphido–borohydride ligands. A homologous series of linear, mononuclear gold(I) phosphine/phosphido‐borohydride complexes, encompassing [Au(PR3)2]+ 1, [Au(PR3)(PR2BH3)] 2 and [Au(PR2BH3)2]– 3 (R = tBu, Ad), has been prepared ...
Matthew J. G. Sinclair, Marc‐Etienne Moret, Luke A. Wilkinson, Adrian B. Chaplin   +3 more
wiley   +1 more source

Covalently Immobilized Lignin–Xanthene Conjugates for Persistent Surface Photochemistry and Self‐Sterilizing Interfaces Under Ambient Visible Light

Macromolecular Rapid Communications, Volume 47, Issue 15, 4 August 2026.
Bio‐derived lignin–Eosin Y macromolecular networks are developed as visible‐light‐responsive self‐sterilizing coatings that generate reactive oxygen species without leaching. The spray‐coated photopolymerized surfaces exhibit durable antibacterial and antiviral activity under ambient light for extended periods, demonstrating a scalable and sustainable ...
Euna Oh, Surjith Kumaran, Sumin Han, Kiseok Lee, Hyerin Shin, Seokmin Oh, Dae‐Hong Ko, Hyo‐Jick Choi   +7 more
wiley   +1 more source

Trifluoromethylation‐Induced Lactonization: A Novel Transformation of Unsaturated Carboxylic Acids

ChemistryOpen, Volume 15, Issue 8, August 2026.
Fluorinated drugs often contain trifluoromethyl groups. The increasing importance of such drugs has resulted in more and more attention toward new or improved trifluoromethylation reactions. This review discusses possible reaction mechanisms and existing methods for one such process, trifluoromethylation‐induced lactonization, a distant relative of the
Attila M. Remete
wiley   +1 more source

Photochromic carbazole photoinitiators for precision visible‐light photopolymerization

Polymer International, Volume 75, Issue 8, Page 722-728, August 2026.
New carbazole–naphthopyran derivatives were employed as visible‐light‐activated photoinitiators, enabling rapid and localized radical photopolymerization to produce well‐defined thin solid objects within minutes. Abstract Two carbazole derivatives, each incorporating a naphthopyran unit and an aromatic ketone, were synthesized and evaluated as ...
Mauro Magalhães, Céu M Sousa, José R Fernandes, Paulo J Coelho   +3 more
wiley   +1 more source

Highly enantioselective reduction of benzophenones by engineered Geotrichum candidum alcohol dehydrogenase. [PDF]

Appl Microbiol Biotechnol
Tang Z, Otárola Tejada GG, Koesoema AA, Matsuda T.   +3 more
europepmc   +1 more source