Abstract
Treatment of pyridine-stabilized silylene complexes [(η5-C5Me4R)(CO)2(H)W=SiH(py)(Tsi)] (R=Me, Et; py=pyridine; Tsi=C(SiMe3)3) with an N-heterocyclic carbene MeIiPr (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) caused deprotonation to afford anionic silylene complexes [(η5-C5Me4R)(CO)2W=SiH(Tsi)][HMeIiPr] (R=Me (1-Me); R=Et (1-Et)). Subsequent oxidation of 1-Me and 1-Et with pyridine-N-oxide (1 equiv) gave anionic η2-silaaldehydetungsten complexes [(η5-C5Me4R)(CO)2W{η2-O=SiH(Tsi)}][HMeIiPr] (R=Me (2-Me); R=Et (2-Et)). The formation of an unprecedented W-Si-O three-membered ring was confirmed by X-ray crystal structure analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 188-192 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 55 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2016 Jan 4 |
Keywords
- metallacycles
- silaaldehydes
- silanones
- silicon
- tungsten
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
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Cite this
Fukuda, T., Hashimoto, H., Sakaki, S., & Tobita, H. (2016). Stabilization of a Silaaldehyde by its η2 Coordination to Tungsten. Angewandte Chemie - International Edition, 55(1), 188-192. https://doi.org/10.1002/anie.201507956