Tris(dimethylamino)silylium ion: structure and reactivity of a dimeric silaguanidinium
Although several strategies for the stabilization of silylium ions have been established, “π-stabilization” with directly attached π-donor heteroatoms at silicon has not been developed yet. Hydride abstraction from (Me2N)3SiH generates dicationic [(Me2N)3Si+]2 in solution and in the solid state - co...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
12 Jun 2019
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| In: |
Chemical communications
Year: 2019, Volume: 55, Issue: 54, Pages: 7764-7767 |
| ISSN: | 1364-548X |
| DOI: | 10.1039/C9CC03625C |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1039/C9CC03625C Verlag, Volltext: https://pubs.rsc.org/en/content/articlelanding/2019/cc/c9cc03625c 
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| Author Notes: | Nina Kramer, Hubert Wadepohl and Lutz Greb |
| Summary: | Although several strategies for the stabilization of silylium ions have been established, “π-stabilization” with directly attached π-donor heteroatoms at silicon has not been developed yet. Hydride abstraction from (Me2N)3SiH generates dicationic [(Me2N)3Si+]2 in solution and in the solid state - constituting the dimer of an elusive silaguanidinium ion. This compound can be synthesized on a gram scale and is compatible with common organic solvents. However, it readily undergoes spontaneous electrophilic silylation of electron-rich aromatic compounds or initiates a catalytic hydro-defluorination reaction. |
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| Item Description: | Gesehen am 23.07.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1364-548X |
| DOI: | 10.1039/C9CC03625C |