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

Ryutaro Wakabayashi; Kazufumi Kawahara; Kazuyuki Kuroda

doi:10.1002/anie.201001640

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

Ryutaro Wakabayashi, Kazufumi Kawahara, Kazuyuki Kuroda^*

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

44 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 language	English
Pages (from-to)	5273-5277
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	49
Issue number	31
DOIs	https://doi.org/10.1002/anie.201001640
Publication status	Published - 2010 Jul 19

Keywords

Lewis acids
Nonhydrolytic synthesis
Oligomerization
Silanes

ASJC Scopus subject areas

Catalysis
Chemistry(all)

Access to Document

10.1002/anie.201001640

Cite this

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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)",

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AU - Kuroda, Kazuyuki

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KW - Oligomerization

KW - Silanes

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