Photoelectron spectra of vinyl- and 1-alkynylgermanes and stannanes
摘要:
Primary vinylic and acetylenic germanes and stannanes, synthesized by a chemoselective reduction of the corresponding trichloro derivatives, were investigated by ab initio quantum chemical methods and photoelectron spectroscopy. In particular, the PE spectra display very well-resolved bands which show the increasing destabilizing effect of 14 group heteroatom cl-substitution of double or triple carbon-carbon bonds. (C) 1998 Elsevier Science S.A. All rights reserved.
Transition Metal‐Free Catalytic C−H Silylation of Terminal Alkynes with bis(Trimethylsilyl)acetylene Initiated by KHMDS
作者:Krzysztof Kuciński、Grzegorz Hreczycho
DOI:10.1002/cctc.202200794
日期:2022.9.20
Dealkynative Coupling: C−H silylation of several terminalacetylenes has been established by using sustainable and eco-friendly main-group catalysis. As a result, several alkynes, including pharmaceuticals, were selectively silylated under transition metal-free conditions. Mechanistic studies provided strong support for the deprotonation step, which is followed by the formation of pentacoordinated
Access to Unsaturated Organogermanes via (De)Hydrosilylation Mediated by Cobalt Complexes
作者:Konstancja Broniarz、Grzegorz Hreczycho
DOI:10.1021/acs.orglett.3c02326
日期:2023.9.8
the reaction can proceed via dehydrogenative coupling or hydrosilylation. Importantly, the presented method is characterized by mild reaction conditions, allowing rapid access to a wide range of organogermanes.