Lh. Shiu et al., ATYPICAL CARBON-CARBON BOND SCISSION AND DEOXYGENATION IN THE PROTONATION OF TUNGSTEN-ETA(1)-OXABICYCLIC COMPOUNDS, Chemical communications, (9), 1996, pp. 1041-1042
Treatment of tungsten-eta(1)-7-oxabicyclo[2.2.1]heptadiene and -eta(1)
-7-oxabicyclo[2.2.1]heptene with CF3SO3H leads to atypical carbon-carb
on bond scission and deoxygenation; the reaction intermediates in the
bond scission involves a tungsten-eta(1)-2-hydrofurylium cation.