Results 111 to 120 of about 26,559,672 (198)

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source

Radical‐Mediated 1,2‐Boryl Migration: An Emerging Strategy Toward Diverse Boronate Molecules and Polymers

Transformative Chemistry, EarlyView.
This perspective highlights radical‐mediated 1,2‐boryl migration as a thermodynamically driven radical translocation strategy that enables the construction of diverse functionalized organoboronates, the transposition editing of organic molecules, and the synthesis of C3 alternating copolymers.
Chaoran Xu, Xiangcheng Pan
wiley   +1 more source

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

The Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá, Patrick C. Nobre, Isabelly O. Ferreira, Juliano B. Azeredo, Vanessa Nascimento   +4 more
wiley   +1 more source

Transition metal-catalyzed arylation of unactivated C(sp3)-H bonds.

, 2011
International audienceTransition-metal-catalyzed C-H bond arylation has recently emerged as a powerful tool for the functionalization of organic molecules that may complement or even replace traditional catalytic cross-couplings.
Baudoin, Olivier, Olivier Baudoin
core   +1 more source

Trans‐resveratrol alleviates inflammation and improves skin barrier function via aryl hydrocarbon receptor pathway in human reconstructed epidermis

International Journal of Cosmetic Science, EarlyView.
In a cytokine‐challenged human epidermal model, trans‐resveratrol reduces inflammation (IL‐1α) and oxidative stress markers (CYP1A1, CYP1B1), while modulating the expression of barrier‐related genes (LOR, OCLN) and differentiation‐associated CASP14. This supports its role as a multifunctional active for sensitive and compromised skin.
Irini M. Dijkhoff, Sandeep Keshavan, Regina G. Daré, Alke Petri‐Fink, Marc Eeman, Agnès Tessier, Barbara Rothen‐Rutishauser   +6 more
wiley   +1 more source

Palladium-Catalyzed β-C(sp³)–H Bond Arylation of Tertiary Aldehydes Facilitated by 2-Pyridone Ligands

Molecules
2-Pyridone ligand-facilitated palladium-catalyzed direct C–H bond functionalization via the transient directing group strategy has become an attractive topic.
Ziting Xu, Zhi Li, Chong Liu, Ke Yang, Haibo Ge   +4 more
doaj   +1 more source

Photochemical C-H Arylation of Napthoquinones Using Eosin Y. [PDF]

ACS Omega, 2022
Nagar B, Dhar BB.
europepmc   +1 more source

Palladium-Catalyzed para-C-H Arylation of Anilines with Aromatic Halides. [PDF]

Angew Chem Int Ed Engl, 2022
Lichte D, Pirkl N, Heinrich G, Dutta S, Goebel JF, Koley D, Gooßen LJ.   +6 more
europepmc   +1 more source

β‑Selective C–H Arylation of Pyrroles Leading to Concise Syntheses of Lamellarins C and I

, 2016
The first general β-selective C–H arylation of pyrroles has been developed by using a rhodium catalyst. This C–H arylation reaction, which is retrosynthetically straightforward but results in unusual regioselectivity, could result in de novo syntheses of
Kirika Ueda (1746433), Richard M. Maceiczyk (1746436), Kazuma Amaike (1344300), Junichiro Yamaguchi (1685833), Kenichiro Itami (1578556)   +4 more
core   +1 more source

Arylazole derivatives by highly regioselective direct C-H arylation reactions

, 2008
Heteroaromatics are important structural units frequently found in natural products, pharmaceutics, agrochemicals, and organic functional materials such as liquid crystals and fluorescent dyes.
A. Di Fiore, F. Scalesse, C. Marchetti, R. Rossi, F. Bellina, F. Benelli, S. Cauteruccio   +6 more
core   +2 more sources