Reactivities of germacyclopropabenzene toward some transition metal carbonyl complexes

Tomoyuki Tajima, Takayo Sasaki, Takahiro Sasamori, Nobuhiro Takeda, Norihiro Tokitoh

Research output: Contribution to journalArticle

7 Citations (Scopus)


The thermal reactions of an overcrowded germacyclopropabenzene with group 6 metal hexacarbonyl complexes [M(CO)6] (M = Cr, Mo and W) resulted in the formation of novel Fischer-type carbene complexes via the insertion reaction of a C=O group to the Ge-C bond. By contrast, the germacyclopropabenzene reacts with [Co2(CO)8] to give a germanium analog of benzocyclobutanone via the insertion reaction of a CO unit into the germacyclopropane ring. The reaction of the germacyclopropabenzene with [Mn2(CO)10] resulted in the formation of the intramolecular cyclization product accompanying the migration of a trimethylsilyl group, i.e. a cyclobutabenzene derivative.

Original languageEnglish
Pages (from-to)570-577
Number of pages8
JournalApplied Organometallic Chemistry
Issue number4
Publication statusPublished - Apr 2005
Externally publishedYes



  • Germacyclobutabenzene
  • Germacyclobutanone
  • Germacyclopropabenzene
  • Germanium
  • Germoxycarbene complexes
  • Insertion reaction
  • Main group element
  • Metal carbonyls of groups 6,7, and 9
  • Three-membered ring

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Inorganic Chemistry
  • Bioengineering
  • Materials Chemistry

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