Direct synthesis of ethylmethoxysilanes by the liquid-phase reaction of silicon, methanol and ethylene

Masaki Okamoto, Naoto Watanabe, Eiichi Suzuki, Yoshio Ono

Research output: Contribution to journalArticle

10 Citations (Scopus)


The liquid-phase reactions of silicon, methanol and ethylene in an autoclave gave ethylmethoxysilanes (HSi(C2H5)(OCH3)2 and Si(C2H5)(OCH3)3) besides HSi(OCH3)3 and Si(OCH3)4. The reaction conditions for obtaining a high selectivity for the ethylmethoxysilanes were examined. With the use of a high pressure of ethylene and a small amount of methanol in toluene as a solvent at 433 K, ethylmethoxysilanes were obtained in 26% selectivity at silicon conversion of 59%. The direct reaction of silicon with ethanol and ethylene gave HSi(C2H5)(OC2H5)2 and Si(C2H5)(OC2H5)3.

Original languageEnglish
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - 1995 Mar 8
Externally publishedYes



  • Alkene
  • Liquid-phase reaction
  • Methanol
  • Silane
  • Silicon
  • Silylene

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this