Synlett 2015; 26(09): 1248-1252
DOI: 10.1055/s-0034-1380382
letter
© Georg Thieme Verlag Stuttgart · New York

Asymmetric Conjugate Addition of Ketones to Maleimides Using Diaminomethyleneindenedione Organocatalyst

Authors

  • Kosuke Nakashima

    Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan   eMail: tmiura@toyaku.ac.jp
  • Masahiro Kawada

    Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan   eMail: tmiura@toyaku.ac.jp
  • Shin-ichi Hirashima

    Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan   eMail: tmiura@toyaku.ac.jp
  • Mana Kato

    Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan   eMail: tmiura@toyaku.ac.jp
  • Yuji Koseki

    Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan   eMail: tmiura@toyaku.ac.jp
  • Tsuyoshi Miura*

    Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan   eMail: tmiura@toyaku.ac.jp
Weitere Informationen

Publikationsverlauf

Received: 29. Januar 2015

Accepted after revision: 22. Februar 2015

Publikationsdatum:
19. März 2015 (online)


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Abstract

A novel diaminomethyleneindenedione (DMI) organocatalyst efficiently promotes the asymmetric conjugate addition of a ketone to a maleimide to afford the corresponding addition product in a high yield with up to 99% enantiomeric excess.

Supporting Information