Heterogeneous Lewis acid catalysis with self-organized polymeric rare earth arylsulfonates under solvent-free conditions

Hiroshi Furuno, Shuichi Ishida, Shoko Suzuki, Tetsuji Hayano, Satoaki Onitsuka, Junji Inanaga

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    Polymeric rare earth arylsulfonates, easily prepared from rare earth triisopropoxides and biphenyl-4,4'-disulfonic acid (BPDSA) or 1,3,5-triphenylbenzene trisulfonic acid (TPTSA) in a self-organization manner, were found to work as an efficient heterogeneous Lewis acid catalyst for the hetero-Diels-Alder reaction of aldehydes with the Danishefsky's diene and the ring-opening reaction of epoxides with amines under solvent-free conditions. The catalysts could be quantitatively recovered and reused many times without decreasing their activities.

    Original languageEnglish
    Pages (from-to)1007-1018
    Number of pages12
    JournalHeterocycles
    Volume77
    Issue number2
    DOIs
    Publication statusPublished - Feb 1 2009

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry
    • Organic Chemistry
    • Pharmacology

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