Synthesis 2023; 55(18): 2985-2992
DOI: 10.1055/a-2038-9146
paper
Special Issue Electrochemical Organic Synthesis

Electrosynthesis of Flavanones via oxa-Michael Addition Using Sacrificial Electrodes

Authors

  • William A. B. Santos

    a   Department of Chemistry, State University of Santa Catarina (UDESC), Joinville – SC, 89219-719, Brazil
    b   Department of Chemistry, Federal University of Santa Catarina (UFSC), Florianópolis – SC, 88040-900, Brazil
  • Pedro P. de Castro

    c   Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos – SP, 13565-905, Brazil
  • Fernando R. Xavier

    a   Department of Chemistry, State University of Santa Catarina (UDESC), Joinville – SC, 89219-719, Brazil
  • Antonio L. Braga

    b   Department of Chemistry, Federal University of Santa Catarina (UFSC), Florianópolis – SC, 88040-900, Brazil
  • Guilherme M. Martins

    c   Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos – SP, 13565-905, Brazil
  • Samuel R. Mendes

    a   Department of Chemistry, State University of Santa Catarina (UDESC), Joinville – SC, 89219-719, Brazil

The authors would like to thank the FAPESP (grant numbers: 2022/00074-3 (G. M. M.), and 2021/13924-2 (P. P. C.), FAPESC (grant number: 2021TR964), Capes (001) and INCT-Catálise-FAPESC.


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Abstract

An electrochemical synthesis of flavanones via oxa-Michael addition using silver electrode as a sacrifice is reported. This electrosynthetic system showed good yields, broad substrate scope, and good functional group tolerance. Additionally, the method proved to be applicable on a gram-scale. Several studies were carried out to elucidate the reaction mechanism, such as control reactions, cyclic voltammetry, and theoretical studies, allowing the proposal of a plausible pathway for this transformation.

Supporting Information



Publikationsverlauf

Eingereicht: 13. Dezember 2022

Angenommen nach Revision: 20. Februar 2023

Accepted Manuscript online:
20. Februar 2023

Artikel online veröffentlicht:
22. März 2023

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