Results 81 to 90 of about 26,559,672 (198)

Regioselective Pd-catalyzed direct C1- and C2-arylations of lilolidine for the access to 5,6-dihydropyrrolo[3,2,1-ij]quinoline derivatives

Beilstein Journal of Organic Chemistry, 2019
The Pd-catalyzed C–H bond functionalization of lilolidine was investigated. The use of a palladium-diphosphine catalyst associated to acetate bases in DMA was found to promote the regioselective arylation at α-position of the nitrogen atom of lilolidine ...
Hai-Yun Huang, Haoran Li, Thierry Roisnel, Jean-François Soulé, Henri Doucet   +4 more
doaj   +1 more source

Synthesis of a 1,2-Dithienylethene-Containing Donor-Acceptor Polymer via Palladium-Catalyzed Direct Arylation Polymerization (DArP)

Molecules, 2018
This paper reports the synthesis of D-A polymers containing 1,2-dithienylethene (DTE) units via palladium-catalyzed direct arylation polymerization (DArP).
Masayuki Wakioka, Natsumi Yamashita, Hiroki Mori, Yasushi Nishihara, Fumiyuki Ozawa   +4 more
doaj   +1 more source

Infrared Irradiation‐Assisted Pd‐Catalyzed C(sp3)─H Arylation and Tandem Cyclization of Ortho‐Tolualdehydes

Chemistry – A European Journal, EarlyView.
A rapid and efficient protocol for the synthesis of 2‐benzylbenzaldehydes and anthracenes is reported, based on the infrared (IR) irradiation‐assisted Pd‐catalyzed C(sp3)─H arylation and the tandem C(sp3)─H arylation/electrophilic aromatic cyclization of ortho‐tolualdehydes with aryl iodides via a transient directing group (TGD) strategy.
Matteo Renato Martina, Ambra Maria Fiore, Angela Punzi, Gianluigi Albano, Roberta Ragni, Pietro Cotugno, Gianluca Maria Farinola   +6 more
wiley   +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

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

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

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

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

Triazole-Assisted Ruthenium-Catalyzed C-H Arylation of Aromatic Amides

, 2014
Site-selective ruthenium(II)-catalyzed direct arylation of amides was achieved through C-H cleavages with modular auxiliaries, derived from easily accessible 1,2,3-triazoles.
Diers, Emelyne, Ackermann, Lutz, Al Mamari, Hamad H.   +2 more
core   +1 more source