Results 21 to 30 of about 482,822 (233)

From photons to reactions: key concepts in photoredox catalysis

open access: yesChem Catalysis
Photoredox catalysis has emerged as a powerful tool for organic synthesis, enabling the generation of reactive intermediates under mild reaction conditions.
Simon De Kreijger   +2 more
semanticscholar   +2 more sources

Organic synthesis using photoredox catalysis [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2014
Natural photosynthesis is a remarkable chemical machinery that enables our life on earth and delivers a constant stream of oxygen and organic biomass. We should acknowledge this fact with humbleness, especially because we have not been able yet to mimic this process in a reliable way even after decades of intense research.
Axel G. Griesbeck
doaj   +3 more sources

Merging Visible-Light-Photoredox and Nickel Catalysis [PDF]

open access: yes, 2020
A new combination: The merging of visible‐light‐photoredox catalysis and nickel catalysis has been successfully achieved for cross‐coupling reactions. The synthetic scope and limitations of the combination of nickel and photoredox catalysis for Csp3-Csp2
Vila Descals, Carlos
core   +1 more source

Recent Advances in Visible-Light Photoredox Catalysis for the Thiol-Ene/Yne Reactions

open access: yesMolecules, 2022
Visible-light photoredox catalysis has been established as a popular and powerful tool for organic transformations owing to its inherent characterization of environmental friendliness and sustainability in the past decades.
Qian Xiao, Qing-Xiao Tong, Jian-Ji Zhong
doaj   +1 more source

Harnessing Photophysical Processes to Improve Photoredox Catalysis [PDF]

open access: yes, 2020
Photoredox catalysis has revolutionized organic chemistry, and beyond, over the past 10 years. As a field, we’ve explored the scope of this methodology in synthesis, materials chemistry, and photoenzymatic catalysis.
Ravetz, Benjamin
core   +1 more source

Ketones from aldehydes via alkyl C(sp3)−H functionalization under photoredox cooperative NHC/palladium catalysis

open access: yesNature Communications, 2023
Direct synthesis of ketones from aldehydes features high atom- and step-economy. Yet, the coupling of aldehydes with unactivated alkyl C(sp3)-H remains challenging.
Hai-Ying Wang   +4 more
doaj   +1 more source

Oxidase reactions in photoredox catalysis

open access: yesChemical Society Reviews, 2021
This tutorial review highlights the distinctive mechanistic roles of and practical considerations regarding terminal oxidants in photocatalytic “oxidase”-type reactions.
Nicholas L. Reed, Tehshik P. Yoon
openaire   +3 more sources

Combined Photoredox and Carbene Catalysis for the Synthesis of Ketones from Carboxylic Acids [PDF]

open access: yes, 2020
Disclosed herein is the development of a novel single-electron reduction of acyl azoliums for the formation of ketones from carboxylic acids. Facile construction of the acyl azolium in situ followed by a radical-radical coupling was made possible using ...
Karl, Scheidt   +3 more
core   +1 more source

Combined Photoredox Catalysis for Value-Added Conversion of Contaminants at Spatially Separated Dual Active Sites

open access: yesResearch, 2023
As 2 indispensable counterparts in one catalysis system, the independent reduction and oxidation reactions require synergetic regulation for cooperatively promoting redox efficiency.
Jieyuan Li   +8 more
doaj   +1 more source

Photoredox-Enabled Chromium-Catalyzed Alkene Diacylations

open access: yes, 2022
Transition-metal-catalyzed cross-coupling reactions are a powerful tool to construct carbon–carbon bonds in modern synthetic chemistry. Chromium catalysis is much less developed compared with the widely used palladium and nickel catalysis.
Xiaotian Qi   +17 more
core   +1 more source

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