Lutidine/B(C6F5)3: At the Boundary of Classical and Frustrated Lewis Pair Reactivity

Classical Lewis acid-base adducts, previously thought to be unreactive, can provide access to the unique reactivity of frustrated Lewis pairs. This was demonstrated with a mixture of 2,6-lutidine and B(C6F5)(3) where an equilibrium affords the adduct and yet also effects the heterolytic activation of H-2 and the ring opening of THF.