Articles with "light promoted" as a keyword



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A Visible‐Light Promoted Amine Oxidation Catalyzed by a Cp*Ir Complex

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Published in 2020 at "Chemcatchem"

DOI: 10.1002/cctc.202000488

Abstract: Through a rapid screening of Cp*Ir complexes based on a turn‐on type fluorescence readout, a [Cp*Ir(dipyrido[3,2‐a : 2’,3’‐c]phenazine)Cl]+ complex was found to catalyze the blue‐light promoted dehydrogenation of N‐heterocycles under physiological conditions. In the dehydrogenation of tetrahydroisoquinolines,… read more here.

Keywords: promoted amine; visible light; oxidation catalyzed; light ... See more keywords
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Visible-Light-Promoted Arylation Reactions Photocatalyzed by Bismuth(III) Oxide

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Published in 2017 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.201701242

Abstract: Bismuth(III) oxide has been successfully applied as a photocatalyst in the arylation of heteroarenes with diazonium salts. With a low catalyst loading (1 to 5 mol%), this cheap and non-toxic semiconductor could efficiently promote the… read more here.

Keywords: iii oxide; visible light; arylation; light promoted ... See more keywords
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Visible-Light Promoted Radical Fluoroalkylation of O- and N-Substituted Alkenes.

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Published in 2023 at "Chemical record"

DOI: 10.1002/tcr.202300038

Abstract: Interaction of enol ethers enol acetates, enamides and enamines with fluorinated reagents may be considered as a reliable method for the synthesis of organofluorine compounds. While classic nucleophile/electrophile substitution or addition mechanisms cannot be realized… read more here.

Keywords: promoted radical; fluoroalkylation substituted; light promoted; visible light ... See more keywords
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A visible light promoted O-glycosylation with glycosyl trichloroacetimidates using eosin Y as an organo photoacid.

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Published in 2020 at "Carbohydrate research"

DOI: 10.1016/j.carres.2020.107963

Abstract: A photoacid catalyzed O-glycosylation of alcohols with glycosyl trichloroacetimidates in the presence of commercially available phenolic photoacids, fluorescein, 4',5'-dibromo-fluorescein, and eosin Y under visible light irradiation by blue LEDs was developed. The method is operationally… read more here.

Keywords: glycosyl trichloroacetimidates; photoacid; visible light; promoted glycosylation ... See more keywords
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N-9 Alkylation of purines via light-promoted and metal-free radical relay

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Published in 2018 at "Chinese Chemical Letters"

DOI: 10.1016/j.cclet.2017.08.005

Abstract: Abstract A metal-free and light-promoted approach to the synthesis of N -9 alkylated purine nucleoside derivatives, via a CF 3 radical triggered radical relay pathway, has been developed. Purine nucleoside derivatives were prepared regioselectively in… read more here.

Keywords: alkylation purines; metal free; radical relay; light promoted ... See more keywords
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Visible-light promoted synthesis of 3-arylthioindoles from indoles and diaryl disulfides

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Published in 2017 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2017.05.090

Abstract: Abstract 3-Arylthioindoles could be synthesized in good yields via the photoirradiation of indoles and disulfides. The reaction is efficiently promoted by the catalytic amount of sodium iodide. A reaction mechanism involving the electrophilic substitution of… read more here.

Keywords: indoles diaryl; visible light; arylthioindoles indoles; promoted synthesis ... See more keywords
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Visible light promoted sulfonylation and sulfonylcarbonylation of alkenes

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Published in 2020 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2020.152029

Abstract: Abstract Visible light promoted sulfonylation and sulfonylcarbonylation reactions of readily available alkenes with TosMIC for the synthesis of valuable vinyl sulfones and β-keto sulfones were described. A reasonable radical involved mechanism is proposed. read more here.

Keywords: promoted sulfonylation; sulfonylation sulfonylcarbonylation; visible light; light promoted ... See more keywords
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Properties of Amine-Containing Ligands That Are Necessary for Visible-Light-Promoted Catalysis with Divalent Europium.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c02911

Abstract: We describe a study of the influence of amine-containing ligands on the photoredox-relevant properties of EuII toward the rational design of EuII-containing catalysts for visible-light-promoted photoredox reactions. We report our observations of the effects of… read more here.

Keywords: euii; amine containing; absorbance; light promoted ... See more keywords
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Visible-Light-Promoted Intramolecular α-Allylation of Aldehydes in the Absence of Sacrificial Hydrogen Acceptors.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c02742

Abstract: We report herein an unprecedented protocol for radical cyclization of aldehydes with pendant alkenes via synergistic photoredox, cobaloxime, and amine catalysis. The transformation was achieved in the absence of external oxidants, providing a variety of… read more here.

Keywords: promoted intramolecular; aldehydes absence; intramolecular allylation; visible light ... See more keywords
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Visible-Light-Promoted Aerobic Oxyphosphorylation of α-Diazoesters with H-Phosphine Oxides.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c00198

Abstract: A visible-light-promoted aerobic oxyphosphorylation of α-diazoesters and H-phosphine oxides has been developed. Using air as the oxygen source, the reaction proceeded smoothly at room temperature under blue-light irradiation. The α-diazoesters, molecular oxygen, and H-phosphine oxides… read more here.

Keywords: aerobic oxyphosphorylation; oxyphosphorylation diazoesters; light promoted; phosphine oxides ... See more keywords
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Visible-Light-Promoted Unsymmetrical Phosphine Synthesis from Benzylamines.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c00317

Abstract: Herein, by applying visible-light photoredox catalysis, we have achieved the catalytic deaminative alkylation of diphenylphosphine and phenyl phosphine with benzylamine-derived Katritzky salts at room temperature. The use of Eosin Y as photoredox catalyst and visible… read more here.

Keywords: phosphine; light promoted; promoted unsymmetrical; unsymmetrical phosphine ... See more keywords