Optically active cationic cobalt(III) complexes: Highly efficient catalysts for enantioselective hetero Diels-Alder reaction

Satoko Kezuka, Tsuyoshi Mita, Natsuki Ohtsuki, Taketo Ikeno, Tohru Yamada

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Abstract

Optically active β-ketoiminato cobalt(III) complexes were developed for use as effective catalysts of the enantioselective hetero Diels-Alder reaction of aryl and alkyl aldehydes with 1-methoxy-[3-(tert-butyldimethylsilyl)oxy]-1,3-butadiene. In the presence of 5 mol% cationic cobalt(III) triflate complexes derived from optically active 1,2-bis(3,5-dimethylphenyl)-1,2-ethylenediamine, the hetero Diels-Alder reaction of p-nitrobenzaldehyde proceeded in 94% yield with 94% ee.

Original languageEnglish
Pages (from-to)824-825
Number of pages2
JournalChemistry Letters
Issue number7
Publication statusPublished - 2000

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ethylenediamine
Cobalt
Catalysts
Aldehydes
1,3-butadiene

ASJC Scopus subject areas

  • Chemistry(all)

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Optically active cationic cobalt(III) complexes : Highly efficient catalysts for enantioselective hetero Diels-Alder reaction. / Kezuka, Satoko; Mita, Tsuyoshi; Ohtsuki, Natsuki; Ikeno, Taketo; Yamada, Tohru.

In: Chemistry Letters, No. 7, 2000, p. 824-825.

Research output: Contribution to journalArticle

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AU - Ikeno, Taketo

AU - Yamada, Tohru

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