title: Basic Reactivity Pattern of a Cyclic Disilylated Germylene.
abstract: In order to estimate the reactivity of disilylated germylene phosphine adducts, a cyclic version of this compound class was reacted with a number of different reagents. Reactions with the chalcogens sulfur, selenium, and tellurium led to dimers of the heavy ketone analogues. Reactions with water and ethyl bromide proceeded to give the respective oxidized germanol and germyl bromide. Two different reactions with alkynes were observed which led either to a germacyclopropene, by addition of tolane to the germylene, or to a silagermacyclobutene, likely formed by addition of the alkyne across a silagermene. Reaction via the silagermene was also observed in the reaction with benzophenone. Reaction of a germylene phosphine adduct with GeCl2·(dioxane) provided insertion of the silylated germylene into a Ge-Cl bond, leading to a germylated chlorogermylene phosphine adduct.
authors: Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, 8010 Graz, Austria.
authors: Małgorzata
authors: M
authors: Walewska
authors: Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, 8010 Graz, Austria.
authors: Johann
authors: J
authors: Hlina
authors: Institut für Chemie, Universität Graz , Stremayrgasse 9, 8010 Graz, Austria.
authors: Judith
authors: J
authors: Baumgartner
authors: Institut für Chemie, Universität Oldenburg , Carl von Ossietzky-Strasse 1-3, 26211 Oldenburg, Federal Republic of Germany.
authors: Thomas
authors: T
authors: Müller
authors: Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, 8010 Graz, Austria.
authors: Christoph
authors: C
authors: Marschner