DMAP-stabilized silylenes 1a-c are obtained from the reductive debromination of the corresponding dibromosilanes in the presence of DMAP. Their distinctly different thermal isomerization reactions C-H bond activation, dearomative ring expansion and silyl migration are discussed. Furthermore, complexes 1 dissociate at elevated temperatures, providing the corresponding free silylenes , which are even capable of single-site activation of H. Additionally, a potassium-substituted silicon-centered radical 2 is isolated from overreduction of ( BuSi)SiBr.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048797 | PMC |
| http://dx.doi.org/10.1039/c9ra10628f | DOI Listing |
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DMAP-stabilized silylenes 1a-c are obtained from the reductive debromination of the corresponding dibromosilanes in the presence of DMAP. Their distinctly different thermal isomerization reactions C-H bond activation, dearomative ring expansion and silyl migration are discussed. Furthermore, complexes 1 dissociate at elevated temperatures, providing the corresponding free silylenes , which are even capable of single-site activation of H.
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