Reactivities of germacyclopropabenzene toward some transition metal carbonyl complexes†
Dedicated to the memory of Professor Colin Eaborn who made numerous important contributions to the main group chemistry
Abstract
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 CO group to the GeC 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. Copyright © 2005 John Wiley & Sons, Ltd.
