title: BF3.OEt2 and TMSOTf: A synergistic combination of Lewis acids.
abstract: The combination of BF3.OEt2 and TMSOTf gives BF2OTf.OEt2, which is a more powerful Lewis acid than its components and especially effective in CH3CN solvent; the complex formed has been characterised by 1H, 19F, 11B and 31P (using Et3PO as an additive) NMR spectroscopy.
authors.affiliation: School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK BS8 1TS.
authors.forename: Eddie L
authors.initials: EL
authors.lastname: Myers
authors.forename: Craig P
authors.initials: CP
authors.lastname: Butts
authors.forename: Varinder K
authors.initials: VK
authors.lastname: Aggarwal