Results 111 to 120 of about 3,385 (223)

Photochemistry of N‐Substituted, N′‐Tosyl Diphenyl Sulfondiimines

Journal of Physical Organic Chemistry, Volume 39, Issue 8, August 2026.
The irradiation of N‐substituted, N′‐tosyl diphenyl sulfondiimines with UV light induces the sequential photorelease of two different nitrenes. ABSTRACT Sulfondiimines are an emerging sulfur(VI) functional group with increasing use in synthesis and medicinal chemistry, yet their photochemical behavior has remained largely unexplored.
Bashar Aziz, Paul Danyi, John P. Carney, Ryan D. McCulla   +3 more
wiley   +1 more source

Antiviral activity of the aqueous extract of twelve monthly-collections of propolis from Barra do Corda. [PDF]

Sci Rep
Mendonça RZ, Braida YV, Fernandes AC, Nascimento RM, Salatino A, Salatino MLF, Negri G.   +6 more
europepmc   +1 more source

D–A–π–A Fused Pentacyclic Organic Dyes as Sensitizers for Dye‐Sensitized Solar Cells Operating under Low‐Light Conditions

ChemistrySelect, Volume 11, Issue 30, 10 August 2026.
The highly conjugated [1]benzothieno[3,2‐b]thieno[2,3‐f][1]benzothiophene (TBTBT) moiety was introduced for the first time as a mild donor group in the structure of three D‐A‐π‐A organic dyes. The compounds were prepared through appropriate multistep synthetic sequences and fully characterized. Dye‐sensitized solar cells fabricated with the new dyes as
Francesco D'Amico, Matteo Bartolini, Carmen Coppola, Adalgisa Sinicropi, Alessandro Mordini, Gianna Reginato, Massimo Calamante, Daniele Franchi, Lorenzo Zani, Alessio Dessì   +9 more
wiley   +1 more source

Peptide modification <i>via</i> a mild carbonylative Suzuki-Miyaura reaction gives late-stage access to diaryl-ketones. [PDF]

Chem Sci
Kleppen JP, Scott NWJ, Phillips TJ, Stankevich KS, Donald JR, Barber LJ, Lewis KM, Fairlamb IJS, Spicer CD.   +8 more
europepmc   +1 more source

On the Stereoselective Behavior in the Photochemical Paternò–Büchi Reaction of Benzophenone With Phenyl‐(2‐furyl)Methanol

ChemistrySelect, Volume 11, Issue 31, 17 August 2026.
Hydrogen bond formation determines stereoselectivity in photochemical reaction allowing the formation of complexes between the reagents and these complexes determine the stereochemistry of the product. ABSTRACT Paternò–Büchi reaction between benzophenone and phenyl‐(2‐furyl)methanol gave the corresponding oxetane with high stereoselectivity.
Lucia Emanuele, Rocco Racioppi, Maurizio D'Auria   +2 more
wiley   +1 more source

Color‐Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner, Sunwu Song, Siyang Feng, Liangxuan Wang, Miguel Ródenas, Begoña Milián‐Medina, Min Sang Kwon   +6 more
wiley   +2 more sources

Association of exposure to synthetic phenols and metal(loid)s with early puberty in Spanish girls: a multicentric case-control study. [PDF]

Eur J Pediatr
Olivas-Martinez A, Escribano A, Riaño-Galán I, Torrebias M, Olmedo P, Gil F, Suarez B, Rodríguez-Carrillo A, Corripio R, Castiello F, Bosch MZ, Herrero X, Ventura-Wichner PS, Freire C.   +13 more
europepmc   +1 more source

Contact Sensitization in Patients With Frontal Fibrosing Alopecia: Patch Test Results With an Extended Baseline Series in Consecutive Patients

Contact Dermatitis, Volume 95, Issue 2, Page 192-199, August 2026.
Sensitization to propolis, shellac and gallate mix is FFA‐associated, but its relevance is largely unknown. Sensitization to salicylates is frequent and associated with symptoms of intolerance to sun exposure or sunscreens. No significant improvement by allergen avoidance is identified.
María‐Antonia Pastor‐Nieto, María Elena Gatica Ortega, Anna María Giménez‐Arnau, Tatiana Sanz‐Sánchez, Pedro Mercader García, Inmaculada Ruíz‐González, Gemma Melé‐Ninot, Pablo Chicharro, Paloma Sánchez‐Pedreño, Marina de Vega, Miguel Ángel Gallego Descalzo, Leopoldo Borrego   +11 more
wiley   +1 more source

Auf dem Weg zu chromoselektiven Transformationen in biologischen Systemen: Perspektiven und Herausforderungen

Angewandte Chemie, Volume 138, Issue 31, 27 July 2026.
Die Kontrolle biologischer Systeme mit organischen Chromophoren hat sich zu einer vielversprechenden Strategie entwickelt und findet Anwendung von der chemischen Biologie bis hin zur Medizin. Die Komplexität von In‐vivo‐Systemen lässt sich jedoch nicht mit nur einer einzigen Lichtwellenlänge adäquat abbilden.
Nadja A. Simeth
wiley   +1 more source

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

Angewandte Chemie International Edition, Volume 65, Issue 31, 27 July 2026.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source