tert-Butoxide-Mediated Synthesis of 3,4′-Biquinolines from 2-Aminochalcones

Jiye Jeon, So Young Lee, Cheol Hong Cheon

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


A novel protocol to synthesize 3,4’-biquinolines from 2-aminochalcones in the presence of a stoichiometric amount of sodium tert-butoxide as the nucleophilic promotor was developed. Conjugate addition of tert-butoxide to 2-aminochalcones provided the corresponding enolates, which underwent Michael addition to another molecule of 2-aminochalcone to afford a dimeric species of 2-aminochalcones. Subsequent cyclization between the amino and carbonyl groups followed by aromatization provides 3,4’-biquinoline products. Various 2-aminochalcones were submitted to this protocol and the desired 3,4’-biquinoline products were obtained in good to high yields in a short reaction time. (Figure presented.).

Original languageEnglish
Pages (from-to)2360-2364
Number of pages5
JournalAdvanced Synthesis and Catalysis
Issue number10
Publication statusPublished - 2019 May 14

Bibliographical note

Funding Information:
This work was supported by National Research Foundation of Korea (NRF) grants funded by the Korean Government (NRF-2018R1D1A1A02086110, NRF-2017M2A8A4018045, and NRF-2014-011165, Center for New Directions in Organic Synthesis). J.J. acknowledges the financial support from an NRF-2018-Fostering Core Leaders of the Future Basic Science Program/Global Ph.D. Fellowship Program funded by the Korean Government.

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim


  • 2-Aminochalcones
  • Biquinolines
  • Dimerization
  • Nucleophilic Catalyst
  • tert-Butoxide

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry


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