Fig. 2: Substrate scope.

Reactions performed on 0.1 mmol scale. Percentages represent isolated yields. The d.r. was determined by 1H NMR spectroscopy of crude or purified reaction mixture. The diastereomeric centre is highlighted with a blue circle. aReactions performed under 20 mol% catalyst loading. bReactions performed under 5 equiv. alkyl fluoride loading. cReactions performed under 24 h. dReactions performed under 36 h.