DMAP-stabilized bis(silyl)silylenes as versatile synthons for organosilicon compounds

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 via C–H bond activation, dearomative ring expansion and silyl migration are discussed. Furthermore, com...

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Detalles Bibliográficos
Autores principales: Holzner, Richard, Reiter, Dominik, Frisch, Philipp, Inoue, Shigeyoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048797/
https://www.ncbi.nlm.nih.gov/pubmed/35497772
http://dx.doi.org/10.1039/c9ra10628f
Descripción
Sumario: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 via C–H bond activation, dearomative ring expansion and silyl migration are discussed. Furthermore, complexes 1 dissociate at elevated temperatures, providing the corresponding free silylenes in situ, which are even capable of single-site activation of H(2). Additionally, a potassium-substituted silicon-centered radical 2 is isolated from overreduction of ((t)Bu(3)Si)(2)SiBr(2).

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