Issue 17, 2018

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

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

Supplementary files

Article information

Article type
Paper
Submitted
24 jan 2018
Accepted
22 mar 2018
First published
23 mar 2018
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2018,47, 5985-5996

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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