Reactions of trisilaallene and 2-germadisilaallene with various reagents

Takeaki Iwamoto, Takashi Abe, Shintaro Ishida, Chizuko Kabuto, Mitsuo Kira

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30 Citations (Scopus)


A number of the distinctive reactions of trisilaallene 1 and 2-germadisilaallene 4 with various reagents including water, alcohols, acetone, and haloalkanes were studied. The addition reactions of 1 to water and alcohols occur in a regiospecific manner to afford 1,3-dioxytrisilanes in high yields. The additions are explained by a stepwise mechanism involving the initial nucleophilic attack of a hydroxy oxygen to a terminal allenic silicon to give an intermediate unsymmetric disilene. The regiospecificity is rationalized by the shape of the frontier molecular orbitals and the NPA charge distribution of trisilaallene 1 and the intermediate disilene.

Original languageEnglish
Pages (from-to)263-270
Number of pages8
JournalJournal of Organometallic Chemistry
Issue number1-3
Publication statusPublished - 2007 Jan 1


  • Addition
  • Germadisilaallene
  • Mechanism
  • Trisilaallene
  • X-ray structural analysis


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