Results 1 to 10 of about 4,963,210 (228)

Direct Arylation in the Presence of Palladium Pincer Complexes [PDF]

open access: yesMolecules, 2021
Direct arylation is an atom-economical alternative to more established procedures such as Stille, Suzuki or Negishi arylation reactions. In comparison with other palladium sources and ligands, the use of palladium pincer complexes as catalysts or pre ...
Garazi Urgoitia   +4 more
doaj   +3 more sources

Rhodium-catalyzed selective direct arylation of phosphines with aryl bromides [PDF]

open access: yesNature Communications, 2022
The widespread use of biaryl monophosphines is frequently hampered by the challenges associated with their modular preparation. Here, the authors report a protocol that appends arenes to arylphosphines to access a series of these compounds via rhodium ...
Dingyi Wang   +6 more
doaj   +4 more sources

Direct Arylation of Simple Arenes with Aryl Bromides by Synergistic Silver and Palladium Catalysis. [PDF]

open access: yesACS Catal, 2021
The direct, catalytic arylation of simple arenes in small excess with aryl bromides is disclosed. The developed method does not require the assistance of directing groups and relies on a synergistic catalytic cycle in which phosphine-ligated silver ...
Tlahuext-Aca A   +3 more
europepmc   +2 more sources

Direct Arylation Synthesis of Small Molecular Acceptors for Organic Solar Cells [PDF]

open access: yesMolecules, 2023
In recent years, small molecular acceptors (SMAs) have extensively promoted the progress of organic solar cells (OSCs). The facile tuning of chemical structures affords SMAs excellent tunability of their absorption and energy levels, and it gives SMA ...
Xiaochen Wang   +5 more
doaj   +2 more sources

Direct C–H Arylation

open access: yesCHIMIA, 2022
Bonds between hydrogen and carbon atoms are the most frequent type of bonds in organic molecules. The ability to replace hydrogen atoms by making other types of bonds to carbon atoms can enable simpler access to complex organic molecules by substituting
Jyoti Dhankhar, Ilija Čorić
doaj   +3 more sources

Ag/Pd Cocatalyzed Direct Arylation of Fluoroarene Derivatives with Aryl Bromides. [PDF]

open access: yesACS Catal, 2020
Diverse C–H functionalizations catalyzed by Pd employ Ag(I) salts added as halide abstractors or oxidants. Recent reports have shown that Ag can also perform the crucial C–H activation step in several of these functionalizations.
Panigrahi A   +3 more
europepmc   +2 more sources

Nickel catalysis enables convergent paired electrolysis for direct arylation of benzylic C-H bonds. [PDF]

open access: yesChem Sci, 2020
Convergent paired electrosynthesis is an energy-efficient approach in organic synthesis; however, it is limited by the difficulty to match the innate redox properties of reaction partners.
Zhang L, Hu X.
europepmc   +2 more sources

Room-temperature Pd/Ag direct arylation enabled by a radical pathway [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2020
Direct arylation is an appealing method for preparing π-conjugated materials, avoiding the prefunctionalization required for traditional cross-coupling methods. A major effort in organic electronic materials development is improving the environmental and
Amy L. Mayhugh, Christine K. Luscombe
doaj   +2 more sources

Direct arylation of strong aliphatic C-H bonds. [PDF]

open access: yesNature, 2018
Despite the widespread success of transition-metal-catalysed cross-coupling methodologies, considerable limitations still exist in reactions at sp3-hybridized carbon atoms, with most approaches relying on prefunctionalized alkylmetal or bromide coupling ...
Perry IB   +5 more
europepmc   +2 more sources

“On Water” Palladium Catalyzed Direct Arylation of 1H-Indazole and 1H-7-Azaindazole [PDF]

open access: yesMolecules, 2020
The C3 direct arylation of 1H-indazole and 1H-7-azaindazole has been a significant challenge due to the lack of the reactivity at this position. In this paper, we describe a mild and an efficient synthesis of new series of C3-aryled 1H-indazoles and C3 ...
Khadija Gambouz   +7 more
doaj   +2 more sources

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