Results 71 to 80 of about 28,217,704 (208)

Photocatalytic (Hetero)Arylation of C(sp3)–H Bonds with Carbon Nitride [PDF]

, 2020
Polymeric graphitic carbon nitride materials have attracted significant interest in recent years and found applications in diverse light-to-energy conversions such as artificial photosynthesis, CO2 reduction or degradation of organic pollutants. However,
Markus, Antonietti, Joshua, Barham, Kathiravan, Murugesan, GONZALO JAVIER VILLEGAS, RODRIGUEZ, Burkhard, Koenig, Jaspreet, Kaur, Saikat, Das, Aleksandr, Savateev   +7 more
core   +2 more sources

Hypervalent Iodine Phenol Dearomatization Mediated by Mechanochemistry

Chemistry – A European Journal, EarlyView.
A solvent‐free mechanochemical process has been developed that enables the rapid oxidative dearomatization of phenols. This method produces spiranic dienones with decent to good yields. This process eliminates the need for expensive and environmentally harmful perfluorinated alcohols, such as hexafluoroisopropanol and trifluoroethanol, while adhering ...
Jérémie Cuillerier, Camille Rocq, Xavier Ottenwaelder, Sylvain Canesi   +3 more
wiley   +1 more source

C-H Bond Arylation of Pyrazoles at the β-Position: General Conditions and Computational Elucidation for a High Regioselectivity

, 2021
International audienceDirect arylation of most five-membered ring heterocycles are generally easily accessible and strongly favored at the α-position using classical palladium-catalysis.
Cordier, Marie, Roger, Julien, Marie Cordier, Sosa Carrizo, E Daiann, Hierso, Jean-Cyrille, Soulé, Jean-François, Julien Roger, Shi, Xinzhe, Jean‐François Soulé, Pirio, Nadine, Xinzhe Shi, Fleurat-Lessard, Paul, Doucet, Henri, E. Daiann Sosa Carrizo, Henri Doucet, Nadine Pirio, Jean‐Cyrille Hierso, Paul Fleurat‐Lessard   +17 more
core   +1 more source

ortho C-H Arylation of Arenes at Room Temperature Using Visible Light Ruthenium C-H Activation [PDF]

, 2020
A ruthenium-catalyzed ortho C-H arylation process is described using visible light. Using the readily available catalyst [RuCl2(p-cymene)]2, visible light irradiation was found to enable arylation of 2-aryl-pyridines at room temperature for a range of ...
Vuagnat, Martin, Charitou, Anastasios, Ivanova, Maria, Greaney, Michael, Wang, Fen, Arunachalam, Sagadevan   +5 more
core   +1 more source

Scale‐down before you scale‐up: Organic electronic materials scaled at Xerox Research Centre of Canada

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Organic electronics have emerged as a key class of functional materials for organic light‐emitting diodes (OLEDs), organic photovoltaics (OPVs), organic field‐effect transistors (OFETs), sensors, and printed electronics. However, commercialization remains dependent on the ability to reproducibly synthesize and manufacture high‐performance ...
Marko D. Saban, Benoît H. Lessard
wiley   +1 more source

Remote Migratory Reductive Arylation of Unactivated Alkenes Enabled by Electrochemical Nickel Catalysis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
we have developed an electrochemical Ni−H catalyzed arylation coupling method of unactivated alkenes with aryl halides. The method displays broad functional group tolerance and proceeds under very mild conditions. Furthermore, aryl chlorides were also compatible substrates in this catalytic system. This conversion holds significant implications for the
Chao Xu, Ru‐Han A, Xiao‐Feng Wu
wiley   +1 more source

Nickel catalysis enables chemoselectivity in radiation chemistry

Nature Communications
Radiation chemistry studies the chemical effects of ionizing radiation on matter. It has found broad applications across diverse scientific, medical and industrial fields.
Weiqiu Liang, Chengda Wu, Jiahao Li, Yang Xu, Xiaohang Liu, Ziyang Sang, Zhiyu Tu, Bo-Shuai Mu, Zhibo Liu   +8 more
doaj   +1 more source

Three-Step Synthesis of Fluoranthenes through Pd-Catalyzed Inter- and Intramolecular C–H Arylation

, 2016
A three-step synthetic method for the preparation of fluoranthenes, involving Miura’s intermolecular C–H arylation, nonaflation, and intramolecular C–H arylation, has been developed. Various 1-naphthols and haloarenes were successfully used as substrates.
Miyuki Yamaguchi (1814692), Kanae Tazawa (2609041), Kei Manabe (1814695), Mayu Higuchi (793694)   +3 more
core   +1 more source

Ullmann‐Type N‐Heteroarylation of Nitrogen Heterocycles Catalyzed by Heterogeneous CuNPs/HKUST‐1

EcoEnergy, EarlyView.
A practical strategy for the direct synthesis of CuNPs/HKUST‐1 heterogeneous catalyst was developed and used for the catalyzing Ullmann‐type N‐arylation of N‐heterocycles with high yields, excellent recyclability, and low copper leaching. ABSTRACT Ullmann‐type C–N coupling is an essential reaction to construct functional nitrogen heterocycles, whereas ...
Shuai Yang, Fangshu Han, Yamin Dong, Liangting Wu, Wenchao Tang, Changyan Guo, Jide Wang, Ablimit Abdukader, Chenjiang Liu, Yonghong Zhang   +9 more
wiley   +1 more source

The Serendipitous Discovery of Rollover Cyclometalation: From Unrecognized Observation to Transformative Chemistry

European Journal of Inorganic Chemistry, EarlyView.
Rollover cyclometalation is a distinctive variant of classical cyclometalation where a chelated heterocyclic ligand undergoes internal rotation, releasing one donor atom from coordination and subsequently activating a remote C─H bond with high regioselectivity.
Antonio Zucca, Maria I. Pilo
wiley   +1 more source