Results 11 to 20 of about 229,704 (190)

Cooperative Photoredox and Asymmetric Catalysis [PDF]

open access: yesCHIMIA, 2016
Chemical processes combining visible-light-activated redox catalysis with asymmetric catalysis are reviewed, including enamine catalysis in the presence or absence of an additional photoredox sensitizer, phase transfer catalysis exploiting an in
Haohua Huo, Eric Meggersa
doaj   +5 more sources

Asymmetric counteranion-directed photoredox catalysis [PDF]

open access: yesScience, 2023
Photoredox catalysis enables distinctive and broadly applicable chemical reactions, but controlling their selectivity has proven to be difficult. The pursuit of enantioselectivity is a particularly daunting challenge, arguably because of the high energy ...
List, B.   +5 more
core   +5 more sources

Molecular Rubies in Photoredox Catalysis

open access: yesFrontiers in Chemistry, 2022
The molecular ruby [Cr(tpe)2]3+ and the tris(bipyridine) chromium(III) complex [Cr(dmcbpy)3]3+ as well as the tris(bipyrazine)ruthenium(II) complex [Ru(bpz)3]2+ were employed in the visible light-induced radical cation [4+2] cycloaddition (tpe = 1,1,1 ...
Steven Sittel   +2 more
doaj   +5 more sources

Aromatic Chlorosulfonylation by Photoredox Catalysis

open access: yesChemSusChem, 2016
Visible-light photoredox catalysis enables the efficient synthesis of arenesulfonyl chlorides from anilines. The new protocol involves the convenient in situ preparation of arenediazonium salts (from anilines) and the reactive gases SO2 and HCl (from ...
Neumeier, Michael   +2 more
core   +3 more sources

Photoredox Catalysis for Polymerization Reactions

open access: yesCHIMIA, 2012
Photoredox catalysis is now well-known in organic synthesis for the formation of free radicals under very soft irradiations conditions (e.g. sunlight, household fluorescence or LED bulbs, Xe lamp).
Jacques Lalevée   +7 more
doaj   +4 more sources

Chemistry glows green with photoredox catalysis [PDF]

open access: yesNature Communications, 2020
Can organic chemistry mimic nature in efficiency and sustainability? Not yet, but recent developments in photoredox catalysis animated the synthetic chemistry field, providing greener opportunities for industry and academia.
Giacomo E. M. Crisenza, Paolo Melchiorre
doaj   +3 more sources

Recent Advances in Dual Palladium Photoredox Catalysis. [PDF]

open access: yesChem Asian J
Dual palladium/photoredox catalysis has emerged as a versatile platform for constructing complex molecular architectures. These systems enable a broad range of transformations by integrating palladium's well‐established roles in C─H activation and cross ...
Vispute S   +8 more
europepmc   +2 more sources

Photoredox Catalysis Using Heterogenized Iridium Complexes [PDF]

open access: yes, 2021
Heterogenized photoredox catalysts provide a path to generating chemicals in an environmentally friendly way, with facile reuse of catalysts in batch or continuous processes.
Kelly L., Materna, Leif, Hammarström
core   +2 more sources

A Multitasking Photoredox-Catalysis for Stereoselective C‒N Bond Formation [PDF]

open access: yes, 2023
A rare photoredox-mediated C‒N bond formation methodology has been developed integrating the concepts of [2+2]-photocycloaddition of styrene in combination with N-centered radical (NCR) generation.
Indranil, Chatterjee   +2 more
core   +2 more sources

Photoredox catalysis harnessing oxygen-centered radicals [PDF]

open access: yes, 2023
Visible light provides an abundant and renewable source of energy with an ample capacity to mediate chemical transformations. Photoredox catalysis utilizes this energy for the generation of high-energy radical intermediates and strategically employs ...
Ondrejková, Alica
core   +1 more source

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