Scope of tertiary allylic fluoride 3^a,b.

^aPerformed with 1 (0.4 mmol, 2 equiv.), 2a (0.2 mmol, 1 equiv.), Rh₂(esp)₂ (0.002 mmol, 1 mol%), and Et₃N·3HF (3 equiv.) in CH₂Cl₂ (0.1 M). Yields are reported on the basis of the isolated pure product.

^bBranched/linear ratio, indicated in parentheses, and the diastereoselectivity ratio, indicated in brackets, were determined by ¹⁹F NMR or ¹H NMR analysis of the crude reaction mixture.

^cYield of the isolated product using 1.7 grams of 1a and 4.2 grams of 2a.