Highly enantioselective cyclopropanation of styrenes with diazoacetates catalyzed by optically active β-ketoiminato cobalt(II) complexes

Taketo Ikeno, Mitsuo Sato, Tohru Yamada

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Abstract

The highly enantioselective cyclopropanation of styrenes with diazoacetates was achieved using reasonably designed β-ketoiminato cobalt(II) complex catalysts. In the presence of optically active cobalt(II) complexes derived from optically active 1,2-(2,4,6-trimethylphenyl)-1,2-ethylenediamine, the cyclopropanation of styrene with methyl, ethyl, and tert-butyl diazoacetates proceeded to afford the corresponding cyclopropanecarboxylates with 94-96% ee.

Original languageEnglish
Pages (from-to)1345-1346
Number of pages2
JournalChemistry Letters
Issue number12
Publication statusPublished - 1999

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Styrenes
ethylenediamine
Cobalt
Styrene
Catalysts

ASJC Scopus subject areas

  • Chemistry(all)

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Highly enantioselective cyclopropanation of styrenes with diazoacetates catalyzed by optically active β-ketoiminato cobalt(II) complexes. / Ikeno, Taketo; Sato, Mitsuo; Yamada, Tohru.

In: Chemistry Letters, No. 12, 1999, p. 1345-1346.

Research output: Contribution to journalArticle

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