Results 121 to 130 of about 22,861 (258)

Modular Synthesis of Di‐ and Triazadibenzoazulenes by a Cross‐Coupling/Cycloisomerization Strategy

European Journal of Organic Chemistry, EarlyView.
Two series of regioisomeric di‐ and triazadibenzoazulenes were prepared from dihalogenated imidazo[1,2‐a]pyridines and imidazo[1,2‐a]pyrazines. Imidazo[1,2‐a]pyridines and imidazo[1,2‐a]pyrazines are important nitrogen‐containing heterocycles with applications in medicinal and materials chemistry.
Karyna Kulyk, Artyom Petrosyan, Karsten Paul Lüdtke, Jonas Surkau, Martin Köckerling, Peter Ehlers, Peter Langer   +6 more
wiley   +1 more source

On Novel Non-Organometallic Aryl Nucleophile in Palladium-Catalyzed Arylation

Chemistry Proceedings
Phenylazocarboxylate is described as a novel non-organometallic aryl nucleophile in palladium-catalyzed arylation.
Didier Villemin, Arnaud Jullien, Nathalie Bar   +2 more
doaj   +1 more source

Advances in conjugated porous polymers via high internal phase emulsion templating

Polymer International, EarlyView.
This mini‐review highlights the design, synthesis and potential applications of π‐conjugated polyHIPEs, emphasizing their unique hierarchical structure and tunable properties. The work outlines innovative synthetic strategies and explores their promising roles in photocatalysis and environmental remediation, paving the way for future advancements in ...
Julie‐Lisa Malaval, Michel Granier, Philippe Gerbier, Sébastien Richeter, Sébastien Clément   +4 more
wiley   +1 more source

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

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

Direct oxidative arylation via rhodium-catalyzed C-C bond cleavage of secondary alcohols with arylsilanes

, 2012
An unprecedented example of sequential pyridinyl directed C-C cleavage of secondary alcohols/oxidative arylation with arylsilanes via Rh(III) catalysis is reported.
Lei, Zhi-Quan, Li, Hu, Chen, Kang, Shi, Zhang-Jie, Li, Yang, Zhang, Xi-Sha, Lei, ZQ (reprint author), Peking Univ, BNLMS, Minist Educ, Coll Chem, Beijing 100871, Peoples R China.   +6 more
core  

Bismuth-mediated arylation [PDF]

, 2019
Initial efforts were focused on the development of a catalytic protocol for the arylation of hydroxyarenes using Ar3BiX2 reagents. The individual steps oxidation, arylation and transmetallation were investigated separately to be combined in the final ...
Jurrat, Mark
core  

Ligand Relay Catalysis Enables Asymmetric Migratory Hydroarylation for the Concise Synthesis of Chiral α‐(Hetero)Aryl‐Substituted Amines

Advanced Science
Complementary to the design of a single structurally complex chiral ligand to promote each step in transition‐metal catalysis, multiligand relay catalysis through dynamic ligand exchange with each step in the catalytic cycle promoted by its best ligand ...
Junqian Zhou, Yuli He, Zihao Liu, You Wang, Shaolin Zhu   +4 more
doaj   +1 more source