Selective Formation of Alkoxychlorosilanes and Organotrialkoxysilane with Four Different Substituents by Intermolecular Exchange Reaction

Yuma Komata, Masashi Yoshikawa, Yasuhiro Tamura, Hiroaki Wada, Atsushi Shimojima, Kazuyuki Kuroda*

*この研究の対応する著者

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Alkoxychlorosilanes are scientifically and industrially important toward preparing silicone and silica as well as preparation of siloxane-based nanomaterials by stepwise reactions of Si−OR (R=alkyl) and Si−Cl groups. Intermolecular exchange of alkoxy and chloro groups between alkoxysilanes and chlorosilanes (functional group exchange reaction) provides an efficient and environmentally benign route to alkoxychlorosilanes. BiCl3 as a Lewis acid catalyst can promote the functional group exchange reactions more efficiently than conventional acid catalysts. Higher reactivity has been observed for chlorosilanes with smaller numbers of Si−CH3 groups and for alkoxysilanes with larger numbers of Si−CH3 groups. The reaction mechanism is proposed and selective syntheses of alkoxychlorosilanes are demonstrated. These findings also enable us to synthesize an organotrialkoxysilane with four different substituents.

本文言語English
ページ(範囲)3225-3233
ページ数9
ジャーナルChemistry - An Asian Journal
11
22
DOI
出版ステータスPublished - 2016 11月 22

ASJC Scopus subject areas

  • 生化学
  • 有機化学

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