Nonhydrolytic synthesis of branched alkoxysiloxane oligomers Si[OSiH(OR)2]4 (R = Me, Et)

Ryutaro Wakabayashi, Kazufumi Kawahara, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    30 Citations (Scopus)

    Abstract

    Beyond silanol: A branched siloxane oligomer bearing terminal dialkoxysilyl groups was nonhydrolytically synthesized by direct alkoxysilylation of a tetraalkoxysilane with a chlorodialkoxysilane in the presence of the Lewis acid BiCl3 (see scheme). The reaction proceeds without the formation of intermediate silanol groups, and provides a selective route for siloxane-based oligomers. (Chemical equation presented)

    Original languageEnglish
    Pages (from-to)5273-5277
    Number of pages5
    JournalAngewandte Chemie - International Edition
    Volume49
    Issue number31
    DOIs
    Publication statusPublished - 2010 Jul 19

    Fingerprint

    Siloxanes
    Oligomers
    Bearings (structural)
    Lewis Acids
    Acids
    silanol

    Keywords

    • Lewis acids
    • Nonhydrolytic synthesis
    • Oligomerization
    • Silanes

    ASJC Scopus subject areas

    • Chemistry(all)
    • Catalysis

    Cite this

    Nonhydrolytic synthesis of branched alkoxysiloxane oligomers Si[OSiH(OR)2]4 (R = Me, Et). / Wakabayashi, Ryutaro; Kawahara, Kazufumi; Kuroda, Kazuyuki.

    In: Angewandte Chemie - International Edition, Vol. 49, No. 31, 19.07.2010, p. 5273-5277.

    Research output: Contribution to journalArticle

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