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1,3,2-Diazaborole-derived carbene complexes of boron.
- Source :
-
Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2017 Dec 19; Vol. 47 (1), pp. 41-44. - Publication Year :
- 2017
-
Abstract
- Reaction of 2-bromo-1,3,2-diazaborole (1) with excess BBr <subscript>3</subscript> induces 1,2-hydrogen migration, giving 1,3,2-diazaborole-derived carbene complexes of boron bromide (2). Compound 2 exists in a dynamic solution equilibrium with 1. The <superscript>1</superscript> H NMR study shows that the equilibrium lies to the right side of the dissociation reaction of 2. Parallel reaction of 1 with excess BI <subscript>3</subscript> gives the corresponding 1,3,2-diazaborole-derived carbene boron iodide complex (3). Notably, in contrast to 2, the dissociation reaction of 3 largely lies to the left side, favouring the formation of 3. The dynamic solution equilibrium behaviours of 2 and 3 are probed by both experimental and theoretical methods.
Details
- Language :
- English
- ISSN :
- 1477-9234
- Volume :
- 47
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Dalton transactions (Cambridge, England : 2003)
- Publication Type :
- Academic Journal
- Accession number :
- 29168513
- Full Text :
- https://doi.org/10.1039/c7dt04079b