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Abramov, Alex ; Vernickel, Hendrik ; Saldías, César ; Diaz Diaz, David

Metal- and Oxidant-Free Photoinduced Aromatic Trifluoromethylation Performed in Aerated Gel Media: Determining the Effects on Yield and Selectivity

Article

Abramov, Alex , Vernickel, Hendrik, Saldías, César and Diaz Diaz, David (2019) Metal- and Oxidant-Free Photoinduced Aromatic Trifluoromethylation Performed in Aerated Gel Media: Determining the Effects on Yield and Selectivity. Molecules 24, p. 29.

DOI to cite this document: 10.5283/epub.41561


Abstract

In this work we have investigated the potential benefits of using supramolecular gel networks as reaction media to carry out air-sensitive metal-free light-induced trifluoromethylation of six-membered (hetero)arenes under aerobic conditions. This reaction was performed at room temperature (RT) using sodium triflinate (CF3SO2Na, Langlois' reagent) as a source of radicals and diacetyl as electron ...

In this work we have investigated the potential benefits of using supramolecular gel networks as reaction media to carry out air-sensitive metal-free light-induced trifluoromethylation of six-membered (hetero)arenes under aerobic conditions. This reaction was performed at room temperature (RT) using sodium triflinate (CF3SO2Na, Langlois' reagent) as a source of radicals and diacetyl as electron donor. The effects of confinement in gel media, concentration of reactants, and type of light source on yield and product distribution were evaluated and compared to the results obtained in homogeneous solution. Four different low molecular weight (LMW) gelators were employed in this study. The results confirmed the blocking effect of the gel medium against reaction quenching by external oxygen, as well as a certain control on the kinetics and selectivity.



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Details

Item typeArticle
Journal or Publication TitleMolecules
PublisherMDPI
Place of PublicationBASEL
Volume24
Page Rangep. 29
Date2019
Date of publication12 Feb 2020 11:46
InstitutionsChemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz
Identification Number
ValueType
10.3390/molecules24010029DOI
KeywordsREACTION VESSELS; PHOTOCATALYSIS; NANOPARTICLES; GENERATION; MOLECULES; GELATION; trifluoromethylation; photoinduced reaction; chemoselectivity; supramolecular gel; confined reaction media
Dewey Decimal Classification500 Science > 540 Chemistry & allied sciences
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-415610
Item ID41561

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