Results 111 to 120 of about 482,822 (233)

Polymer brush-supported photoredox catalysis [PDF]

open access: yes
openVisible light organo-photoredox catalysis has demonstrated its enormous potential for enabling challenging chemical reactions while being a cheaper and greener alternative to transition metal-based catalysts.
AVANZINI, ELENA
core  

Multiphoton photoredox catalysis enables selective hydrodefluorinations

open access: yes
Late-stage modification of complex molecules via site-selective hydrodefluorination is a challenging endeavor. The selective activation of carbon-fluorine (C–F) bonds in the presence of multiple C–F bonds is of importance in organic synthesis and drug ...
Murugesan, Kathiravan   +5 more
core   +1 more source

Allylation of aldehydes by dual photoredox and nickel catalysis

open access: yes, 2019
Here we report the application of dual nickel/photoredox catalysis to the allylation of aliphatic, aromatic and heteroaromatic aldehydes by using commercially available reagents. The process utilizes the combination of a Ni(ii) complex, [Ru(bpy)3]2+ as a
Cozzi P. G.   +9 more
core   +1 more source

Merging photoredox with metalloenzymatic catalysis for enantioselective decarboxylative C(sp3)‒N3 and C(sp3)‒SCN bond formation

open access: yesNature Catalysis
The scope of nature’s catalytic abilities has been expanded by recent advancements in biocatalysis to include synthetic transformations with no biological equivalent.
Jin-Yan Rui   +6 more
semanticscholar   +1 more source

Catalytic Wacker-type Oxidations Using Visible Light Photoredox Catalysis

open access: yes, 2019
A combined palladium/photoredox catalytic system for the efficient oxidation of terminal olefins to the corresponding methyl ketones is presented. The interplay of air, water, and light leads to a protocol in which the stoichiometric oxidants required ...
Rüping, Magnus   +12 more
core   +1 more source

Visible-Light Photoredox Catalysis: Aza-Henry Reactions via C−H Functionalization

open access: yes, 2016
Visible-Light Photoredox Catalysis: Aza-Henry Reactions via C−H ...
Allison G. Condie (787886)   +2 more
core   +1 more source

Photoredox-Catalyzed 1,4-Peroxidation–Sulfonylation of Enynones: A Three-Component Radical Coupling Approach for the Synthesis of Highly Functionalized Allenes

open access: yes
An Eosin Y-catalyzed visible light-promoted 1,4-peroxidation–sulfonylation of enynones was achieved to give tetrasubstituted allenes. The photoredox catalysis of Eosin Y allowed the concomitant formation of peroxy and sulfonyl radicals, where the ...
Kosei Miyake (18296587)   +4 more
core   +2 more sources

A general deoxygenation approach for synthesis of ketones from aromatic carboxylic acids and alkenes

open access: yesNature Communications, 2018
Synthesis of aryl ketones can be generally achieved via C–C coupling strategies. Here, the authors show a deoxygenative coupling of carboxylic acids and alkenes enabled by photoredox catalysis and report a wide scope of products, including bioactive and ...
Muliang Zhang, Jin Xie, Chengjian Zhu
doaj   +1 more source

Photoredox-catalyzed branch-selective pyridylation of alkenes for the expedient synthesis of Triprolidine

open access: yesNature Communications, 2019
Alkenylpyridines are versatile building blocks for the synthesis of drugs and other complex molecular structures. Here, the authors show a branch-selective pyridylation of alkenes via sulfinate-assisted photoredox catalysis and showcase its utility in an
Shengqing Zhu   +4 more
doaj   +1 more source

Photoredox-Catalyzed Multicomponent Petasis Reaction with Alkyltrifluoroborates

open access: yes, 2019
A redox-neutral alkyl Petasis reaction has been developed that proceeds via photoredox catalysis. A diverse set of primary, secondary, and tertiary alkyltrifluoroborates participate effectively in this reaction through a single-electron transfer ...
Rauful Alam (1286283)   +7 more
core   +1 more source

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