Results 41 to 50 of about 229,704 (190)

An anion-binding approach to enantioselective photoredox catalysis. [PDF]

open access: yesScience
Photoredox catalysis has emerged as a transformative strategy in synthetic chemistry, enabling a wide variety of valuable chemical reactions through generation of highly reactive radical ion intermediates. Pairing chiral counteranions with cation radical intermediates provides a potentially generalizable tool for controlling absolute stereochemistry in
Vojáčková P, Jacobsen EN.
europepmc   +3 more sources

Enabling Organic Methodology through Photoredox Catalysis [PDF]

open access: yes, 2022
Organic methods development has long dictated the molecular scaffolds available to the pharmaceutical and fine chemical synthesis industries. Photoredox catalysis has emerged as a powerful platform to enable novel reactivity with visible light ...
Treacy, Sean Michael
core   +1 more source

Visible-Light Photoredox Catalysis in Water

open access: yesThe Journal of Organic Chemistry, 2022
The use of water in organic synthesis draws attention to its green chemistry features and its unique ability to unveil unconventional reactivities. Herein, literature about the use of water as a reaction medium under visible-light photocatalytic conditions is summarized in order to highlight challenges and opportunities.
Camilla Russo   +3 more
openaire   +4 more sources

Cooperative Photoredox Catalysis Under Confinement. [PDF]

open access: yesChemistry
AbstractPhotoredox catalysis has emerged as a potent means to conduct synthetic chemistry. Leveraging light to achieve challenging organic transformations has led to many developments, both of fundamental and industrial nature. Despite their potency, photoredox processes are inherently diffusion controlled, which can limit their ability to enable both ...
Gaikwad S, Bhattacharjee A, Elacqua E.
europepmc   +3 more sources

Chemical modification of dehydrated amino acids in natural antimicrobial peptides by photoredox catalysis [PDF]

open access: yes, 2018
Dehydroalanine (Dha) and dehydrobutyrine (Dhb) are remarkably versatile non-canonical amino acids often found in antimicrobial peptides. Here, we present the selective modification of Dha and Dhb in antimicrobial peptides via photocatalytic activation of
de Bruijn, A. Dowine   +5 more
core   +2 more sources

Single-molecule photoredox catalysis

open access: yesChemical Science, 2019
Photocatalytic dehalogenation by a common dyestuff under aqueous conditions is driven by energy-additive absorption of two photons on the single-molecule level.
Josef Haimerl   +4 more
openaire   +3 more sources

Photo-induced oxidant-free oxidative C–H/N–H cross-coupling between arenes and azoles

open access: yesNature Communications, 2017
Functionalization of unactivated C–H bonds is an attractive strategy to introduce functionality without the need for pre-functionalized starting materials.
Linbin Niu   +5 more
doaj   +1 more source

Ligand-controlled stereodivergent alkenylation of alkynes to access functionalized trans- and cis-1,3-dienes

open access: yesNature Communications, 2023
The stereoselective synthesis of 1,3-dienes represents a challenge in organic synthesis. Here, the authors report a ligand-controlled stereodivergent access to both Z- and E-sulfonyl-1,3-dienes via photoredox and nickel catalysis.
Tianyu Long   +6 more
doaj   +1 more source

Recent Advances in Visible-Light-Mediated Amide Synthesis

open access: yesMolecules, 2022
Visible-light photoredox catalysis has attracted tremendous interest within the synthetic community. As such, the activation mode potentially provides a more sustainable and efficient platform for the activation of organic molecules, enabling the ...
Bin Lu, Wen-Jing Xiao, Jia-Rong Chen
doaj   +1 more source

N-Arylphenothiazines as strong donors for photoredox catalysis – pushing the frontiers of nucleophilic addition of alcohols to alkenes

open access: yesBeilstein Journal of Organic Chemistry, 2019
A new range of N-phenylphenothiazine derivatives was synthesized as potential photoredox catalysts to broaden the substrate scope for the nucleophilic addition of methanol to styrenes through photoredox catalysis.
Fabienne Speck   +2 more
doaj   +1 more source

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