Articles with "organic photoredox" as a keyword



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Aerobic Oxidation of Alkynes to 1,2‐Diketones by Organic Photoredox Catalysis

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201700061

Abstract: A method for the synthesis of 1,2‐diketones through the mild and metal‐free catalytic photooxygenation of alkynes is described. This reaction, using 9,10‐dicyanoanthracene as a catalytic sensitizer with/without biphenyl as a co‐sensitizer, readily furnished a variety… read more here.

Keywords: diketones organic; alkynes diketones; aerobic oxidation; organic photoredox ... See more keywords
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Bronsted Acid/Organic Photoredox Cooperative Catalysis: Easy Access to Tri- and Tetrasubstituted Alkenylphosphorus Compounds from Alcohols and P-H Species.

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Published in 2018 at "Organic letters"

DOI: 10.1021/acs.orglett.8b01173

Abstract: A Bronsted acid/organic photoredox cooperative catalytic system toward P-C bond formation from alcohols and P-H species is developed. With the assistance of visible light and TBHP, the reactions proceeded smoothly in an environmentally benign manner… read more here.

Keywords: bronsted acid; alkenylphosphorus compounds; photoredox cooperative; acid organic ... See more keywords
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Organic photoredox catalytic amino-heteroarylation of unactivated olefins to access distal amino ketones.

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Published in 2022 at "Chemical communications"

DOI: 10.1039/d1cc07189k

Abstract: Here we describe a metal-free amino-heteroarylation of unactivated olefins via organic photoredox catalysis, providing a concise and efficient approach for the rapid synthesis of various δ (β, ε)-amino ketones under mild conditions. This protocol demonstrates… read more here.

Keywords: amino heteroarylation; organic photoredox; heteroarylation unactivated; photoredox catalytic ... See more keywords
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Organic photoredox catalyzed dealkylation/acylation of tertiary amines to access amides.

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Published in 2023 at "Chemical communications"

DOI: 10.1039/d2cc05842a

Abstract: A mild metal-free C-N bond activation strategy for the direct conversion of inert tertiary amines with acyl chlorides into tertiary amides via organic photoredox catalysis is presented. In this protocol, a novel organic photocatalyst (Cz-NI-Ph)… read more here.

Keywords: catalyzed dealkylation; organic photoredox; tertiary amines; dealkylation acylation ... See more keywords
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Direct arene C–H fluorination with 18F− via organic photoredox catalysis

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Published in 2019 at "Science"

DOI: 10.1126/science.aav7019

Abstract: A metal-free route to PET probes Positron emission tomography (PET) is a widely used imaging technique for medical diagnostics and pharmaceutical development. As the name implies, it requires tracers that emit positrons, typically through labeling… read more here.

Keywords: fluorination; photoredox catalysis; organic photoredox; via organic ... See more keywords
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Organic photoredox catalysts: tuning the operating mechanisms in the degradation of pollutants

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Published in 2023 at "Pure and Applied Chemistry"

DOI: 10.1515/pac-2022-1206

Abstract: Abstract Photocatalysis is an emerging area of chemistry that takes advantage of light as the primary source of energy to carry out chemical transformations. In this context, organic photocatalysts appear as an alternative that has… read more here.

Keywords: organic photoredox; chemistry; organic photocatalysts; degradation ... See more keywords