Results 51 to 60 of about 4,438 (202)

Photoredox-catalyzed C–C bond cleavage of cyclopropanes for the formation of C(sp 3)–heteroatom bonds

Nature Communications, 2022
The development of new methodologies for the construction of C(sp 3)–heteroatom bonds under mild conditions is desirable. Here the authors report the formation of C(sp 3)–heteroatom bonds via ring opening of arylcyclopropanes enabled by photoredox ...
Liang Ge, Chi Zhang, Chengkai Pan, Ding-Xing Wang, Dong-Ying Liu, Zhi-Qiang Li, Pingkang Shen, Lifang Tian, Chao Feng   +8 more
doaj   +1 more source

Enantioselective radical chemistry: a bright future ahead

Beilstein Journal of Organic Chemistry
This perspective is focused on enantioselective free radical reactions. It describes several important catalytic asymmetric strategies applied to enantioselective radical reactions, including chiral Lewis acid catalysis, organocatalysis, photoredox ...
Anna C. Renner, Sagar S. Thorat, Hariharaputhiran Subramanian, Mukund P. Sibi   +3 more
doaj   +1 more source

Photosynthesis of Au8Cu6 nanocluster for photocatalysis in oxidative functionalization of alkynes

Nature Communications
Ligand-protected metal nanoclusters provide an ideal platform for investigating photoredox catalysis. The central challenge is balancing their stability and catalytic activity.
Yan Zhao, Ze-Min Zhu, Weigang Fan, Wanli Zhu, Jing-Jing Yang, Yang Tao, Wenwen Fei, Hong Bi, Sheng Zhang, Man-Bo Li   +9 more
doaj   +1 more source

Recent progress in photocatalytic reactions involving the excitation of electron-primed catalysts

Journal of Photochemistry and Photobiology, 2023
Open-shell species are attracting significant attention owing to their unique physicochemical properties and highly reactive characteristics. Over the past decade, photoredox catalysis (PRC) has emerged as a powerful strategy for radical reactions ...
Takashi Koike
doaj   +1 more source

Radical Carbon–Carbon Bond Formations Enabled by Visible Light Active Photocatalysts

CHIMIA, 2012
This mini-review highlights the Stephenson group's contribution to the field of photoredox catalysis with emphasis on carbon–carbon bond formation.
Carl-Johan Wallentin, John D. Nguyen, Corey R. J. Stephenson   +2 more
doaj   +1 more source

Dual Ni/photoredox-catalyzed asymmetric cross-coupling to access chiral benzylic boronic esters

Nature Communications, 2021
Metallaphototoredox catalysis has been rarely applied to reductive cross-couplings, in contrast to typical redox-neutral methods. Here, the authors report a mild Ni/photoredox-catalyzed reductive cross-coupling of aryl iodides and α-chloroboranes ...
Purui Zheng, Pan Zhou, Dong Wang, Wenhao Xu, Hepan Wang, Tao XU   +5 more
doaj   +1 more source

Trifluoromethylation of Allylsilanes under Photoredox Catalysis

Organic Letters, 2013
A new catalytic method to access allylic secondary CF3 products is described. These reactions use the visible light excited Ru(bpy)3Cl2·6H2O catalyst and the Togni or Umemoto reagent as the CF3 source. The photoredox catalytic manifold delivers enantioenriched allylic trifluoromethylated products not accessible under Cu(I) catalysis.
Mizuta, S, Engle, K, Verhoog, S, Galicia-López, O, O'Duill, M, Médebielle, M, Wheelhouse, K, Rassias, G, Thompson, A, Gouverneur, V   +9 more
openaire   +3 more sources

Asymmetric 1,4-functionalization of 1,3-enynes via dual photoredox and chromium catalysis

Nature Communications, 2022
In contrast to the better-studied ionic pathway, radical-involved asymmetric 1,4-functionalization of 1,3-enynes remains a prominent challenge. Here, the authors describe the asymmetric three-component 1,4-dialkylation of 1,3-enynes via dual photoredox ...
Feng-Hua Zhang, Xiaochong Guo, Xianrong Zeng, Zhaobin Wang   +3 more
doaj   +1 more source

Organophotoredox/Cobalt‐Catalyzed Retro‐Hydroformylation of Aldehydes

ChemistryEurope, EarlyView.
A new photoredox/cobalt retro‐hydroformylation is developed. This one‐pot two‐step process involves the in situ formation of the corresponding 1,4‐dihydropyridine as key intermediate. Under mild reaction conditions, alkenes are efficiently produced from a wide range of aliphatic α‐monosubstituted aldehydes, with high functional‐group tolerance.
Augustin Nouaille, Emmanuel Magnier, Corinne Gosmini, Guillaume Dagousset   +3 more
wiley   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source