| Autor: |
Andrey V, Protchenko, Joshua I, Bates, Liban M A, Saleh, Matthew P, Blake, Andrew D, Schwarz, Eugene L, Kolychev, Amber L, Thompson, Cameron, Jones, Philip, Mountford, Simon, Aldridge |
| Rok vydání: |
2016 |
| Zdroj: |
Journal of the American Chemical Society. 138(13) |
| ISSN: |
1520-5126 |
| Popis: |
By employing strongly σ-donating boryl ancillary ligands, the oxidative addition of H2 to a single site Sn(II) system has been achieved for the first time, generating (boryl)2SnH2. Similar chemistry can also be achieved for protic and hydridic E-H bonds (N-H/O-H, Si-H/B-H, respectively). In the case of ammonia (and water, albeit more slowly), E-H oxidative addition can be shown to be followed by reductive elimination to give an N- (or O-)borylated product. Thus, in stoichiometric fashion, redox-based bond cleavage/formation is demonstrated for a single main group metal center at room temperature. From a mechanistic viewpoint, a two-step coordination/proton transfer process for N-H activation is shown to be viable through the isolation of species of the types Sn(boryl)2·NH3 and [Sn(boryl)2(NH2)](-) and their onward conversion to the formal oxidative addition product Sn(boryl)2(H)(NH2). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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