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

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
› Author Affiliations
Further Information

Publication History

Received: 29 January 2015

Accepted after revision: 22 February 2015

Publication Date:
19 March 2015 (online)


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