Co(II)-salen-catalyzed highly cis- and enantioselective cyclopropanation

Tatsuo Niimi, Tatsuya Uchida, Ryo Irie, Tsutomu Katsuki

Research output: Contribution to journalArticle

110 Citations (Scopus)

Abstract

The reactions of styrene derivatives and t-butyl α-diazoacetate using (R,R)-(salen)cobalt(II) complex 6 as a catalyst in the presence of N- methylimidazole gave the corresponding cyclopropanecarboxylates with excellent enantio- (>95% ee) and high cis-stereoselectivity (98%) as well as good chemical yields. (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)3647-3651
Number of pages5
JournalTetrahedron Letters
Volume41
Issue number19
DOIs
Publication statusPublished - May 6 2000

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Stereoselectivity
Styrene
Cobalt
Derivatives
Catalysts
1-methylimidazole
disalicylaldehyde ethylenediamine

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

Cite this

Co(II)-salen-catalyzed highly cis- and enantioselective cyclopropanation. / Niimi, Tatsuo; Uchida, Tatsuya; Irie, Ryo; Katsuki, Tsutomu.

In: Tetrahedron Letters, Vol. 41, No. 19, 06.05.2000, p. 3647-3651.

Research output: Contribution to journalArticle

Niimi, Tatsuo ; Uchida, Tatsuya ; Irie, Ryo ; Katsuki, Tsutomu. / Co(II)-salen-catalyzed highly cis- and enantioselective cyclopropanation. In: Tetrahedron Letters. 2000 ; Vol. 41, No. 19. pp. 3647-3651.
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