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Issue 17, 2018
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Spirocyclic germanes via transannular insertion reactions of vinyl germylenes into Si–Si bonds

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Abstract

The reactions of two cyclic germylene phosphane adducts with monosubstituted acetylenes caused the formation of spirocyclic germanes, which is postulated to occur by double acetylene insertion into germylene attached bonds. Further insertion of the formed cyclic divinylgermylene into transannular Si–Si or Si–Ge bonds provides the spirocyclic germanes. Thermal treatment of two germacyclopropenes, formed by the reaction of the two cyclic germylene phosphane adducts with tolane, also produced spirocyclogermanes. The structures of the latter require, however, a more complicated mechanistic proposal.

Graphical abstract: Spirocyclic germanes via transannular insertion reactions of vinyl germylenes into Si–Si bonds

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Publication details

The article was received on 24 Jan 2018, accepted on 22 Mar 2018 and first published on 23 Mar 2018


Article type: Paper
DOI: 10.1039/C8DT00315G
Citation: Dalton Trans., 2018,47, 5985-5996
  • Open access: Creative Commons BY-NC license
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    Spirocyclic germanes via transannular insertion reactions of vinyl germylenes into Si–Si bonds

    M. Walewska, J. Baumgartner, C. Marschner, L. Albers and T. Müller, Dalton Trans., 2018, 47, 5985
    DOI: 10.1039/C8DT00315G

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