Walewska Małgorzata, Baumgartner Judith, Marschner Christoph, Albers Lena, Müller Thomas
Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, A-8010 Graz, Austria.
Dalton Trans. 2018 May 1;47(17):5985-5996. doi: 10.1039/c8dt00315g.
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.
两种环状亚锗烷基膦加合物与单取代乙炔的反应导致了螺环锗烷的形成，据推测这是通过乙炔双键插入亚锗烷基连接的键中发生的。所形成的环状二乙烯基亚锗烷基进一步插入跨环Si-Si或Si-Ge键中，生成了螺环锗烷。由两种环状亚锗烷基膦加合物与二苯乙炔反应形成的两种锗杂环丙烯的热处理也产生了螺环锗烷。然而，后者的结构需要一个更复杂的机理假设。
