Bis-zirconium and bis-hafnium catalysts for the strong activation of carbonyl substrates

Hideo Hanawa, Satoshi Kii, Naoki Asao, Keiji Maruoka

    Research output: Contribution to journalArticle

    45 Citations (Scopus)

    Abstract

    (3,3'-Di-t-butyl-5,5'-dimethylbenzophenone-2,2'- dioxy)bis(triisopropoxyzirconium) and its hafnium derivative can be successfully utilized in organic synthesis as bimetallic Lewis acid catalysts. The high activation ability of such catalysts toward carbonyls is emphasized using several synthetic examples including the asymmetric allylation in comparison with the corresponding mono-Zr as well as bis-Ti catalysts. (C) 2000 Elsevier Science Ltd.

    Original languageEnglish
    Pages (from-to)5543-5546
    Number of pages4
    JournalTetrahedron Letters
    Volume41
    Issue number29
    DOIs
    Publication statusPublished - 2000 Jul 15

    Keywords

    • Aldol reactions
    • Allylation
    • Asymmetric reactions
    • Zirconium and compounds

    ASJC Scopus subject areas

    • Biochemistry
    • Drug Discovery
    • Organic Chemistry

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