A novel route to pentacoordinated organylsilanes and -germanes

Vladimir Gevorgyan, Larisa Borisova, Armand Vyater, Victoria Ryabova, Edmunds Lukevics

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


New convenient methods of sila- and germatranes synthesis from ethoxy- and tetraorganylsilanes and -germanes have been elaborated. The reaction of ethoxysilanes with boratrane in the presence of catalytic amounts of metal alcoholates has been investigated. Dimethylformamide (DMF) as a solvent and NaOEt as a catalyst used instead of xylene and Al(Oi-Pr)3 were found to give better yields. The possibility of using alkoxy-, aminosilanes, tetraethoxygermane and even tetraorganylsilanes in this reaction leading to the corresponding atranes with good yields has been demonstrated. Triethanolamine in the presence of catalytic amounts of base or CsF easily substitutes furyl-, dihydrofuryl-, dihydropyranyl- and thienyl groups in tris- and tetraheterylsilanes, leading to organylsilatranes with good to excellent yields.

Original languageEnglish (US)
Pages (from-to)149-155
Number of pages7
JournalJournal of Organometallic Chemistry
Issue number2
StatePublished - Dec 10 1997
Externally publishedYes


  • Boratrane
  • Catalysis
  • Germanium
  • Germatrane
  • Silatrane
  • Silicon
  • Triethanolamine

ASJC Scopus subject areas

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


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