Results 91 to 100 of about 28,217,704 (208)

Cobalt-Catalyzed Enantioselective C–H Arylation of Indoles

, 2022
International audienceAtropoisomeric (hetero)biaryls are scaffolds with increasing importance in the pharmaceutical and agrochemical industries. Although it is the most obvious disconnection to construct such compounds, the direct enantioselective C-H ...
Oliveira, João, C A, Wencel-Delord, Joanna, Ackermann, Lutz, Oliveira, João C. A., Jacob, Nicolas, Zaid, Yassir, João C. A. Oliveira, Nicolas Jacob, Yassir Zaid, Lutz Ackermann, Joanna Wencel-Delord   +10 more
core   +1 more source

Carbon‐Supported Catalytic Systems Assembled by π–π Interactions

European Journal of Organic Chemistry, EarlyView.
This review explores the noncovalent immobilization of organic and organometallic catalysts on carbonaceous supports through π–π interactions, highlighting its potential to enhance catalyst recovery, recyclability, and the sustainability of organic synthesis.
Chloé Jamalkhan, Léa Ibos, Sarah Bouery, Veronika Myronova, Anaïs Scuiller, Mohamed Mellah, David Kreher, Emmanuelle Schulz, Olivier R. P. David   +8 more
wiley   +1 more source

Effects of Cyclopentadienyl Ligand Structure on Rhodium(III)‐Catalyzed Ortho‐C─H Arylation of Aryl Ketones

European Journal of Organic Chemistry, EarlyView.
A tailored, electron‐rich, anisotropic cyclopentadienyl ligand enables rhodium(III)‐catalyzed ortho arylation of aryl ketones at 80 °C using readily available arylboronic acid pinacol esters. Direct use of a cationic catalyst promotes binding of the weak ketone directing group, while scope and competition experiments reveal how ketone electronics and ...
Laura Thirion, Fatima Meziani, Jean‐François Soulé   +2 more
wiley   +1 more source

Palladium single-atom/cluster cocatalyst supported on non-enzymatic browning glucose breaks the activity-selectivity trade-off in C(sp3)-H arylation

Communications Chemistry
Using Pd homogeneous catalysts for direct C–H arylation is an attractive approach for synthesizing natural products and organic functional materials, but limitations in terms of cost and catalyst recovery could be alleviated by alternative heterogeneous ...
Xiaojie He, Wunengerile Zhang, Chaolumen Bai, Dan Liu, Agula Bao, Tegshi Muschin, Yong-Sheng Bao   +6 more
doaj   +1 more source

Site-selective arylations of nature-inspired flavonoids or steroidal phenols via C—H or O—H activation

Journal of Enzyme Inhibition and Medicinal Chemistry
Phenols are important structural elements of natural products and pharmaceuticals. Due to their versatile chemical transformability, phenols are frequently used building blocks in medicinal chemistry.
Rebeka Ignácz, Noémi Bózsity, Dénes Unger, Zoltán Kele, István Zupkó, Attila Hunyadi, Marija Gjorgoska, Tea Lanišnik Rižner, Erzsébet Mernyák   +8 more
doaj   +1 more source

Dual Role of Aryl Iodide in Cascade C–H Arylation/Amination: Arylation Reagent and Cocatalyst for C–N Formation

, 2018
A cascade C–H arylation/amination protocol using homoallylic primary amines as the starting materials in the presence of a palladium catalyst produces 2-aryl-1-pyrrolines with excellent regioselectivity and in good yields.
Pei-Nian Liu (3921014), Shuo Liu (108276), Deng-Yuan Li (3921017), Shuang Chen (12981), Xiao-Ping Zhu (4103401), An Wang (2161216)   +5 more
core   +2 more sources

Palladium‐Catalyzed Heck‐Type Double Arylation of 1,2‐Dihydropyridines

Helvetica Chimica Acta, EarlyView.
A Pd‐catalyzed Heck‐type double arylation of 1,2‐dihydropyridines enables concise access to 2‐substituted 3,6‐diarylated scaffolds with high site‐ and regioselectivity. ABSTRACT We report a site‐ and regioselective Heck‐type double arylation of substituted 1,2‐dihydropyridines.
Haining Li, Zackaria Nairoukh
wiley   +1 more source

Birch reductive arylation by mechanochemical anionic activation of polycyclic aromatic compounds

Nature Communications
Birch reduction is a well-known process for transforming aromatic compounds. The reduction of aromatic rings using alkali metals produces anionic species that react with protons or electrophiles.
Yoshifumi Toyama, Akiko Yagi, Kenichiro Itami, Hideto Ito   +3 more
doaj   +1 more source

Integrated catalysis opens new arylation pathways via regiodivergent enzymatic C–H activation

Nature Communications, 2016
Biocatalysis and metal catalysis often provide complimentary reactivities and selectivities. Here, the authors exploit the regioselectivity of an enzymatic C–H activation followed by palladium catalysed carbon-carbon bond formation in one pot, with ...
Jonathan Latham, Jean-Marc Henry, Humera H. Sharif, Binuraj R. K. Menon, Sarah A. Shepherd, Michael F. Greaney, Jason Micklefield   +6 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