Rhenium-catalyzed stereoselective allylic alcohol transposition with diols 2^a,b,c.

^aReaction conditions: diol 2 (0.1 mmol, 1.0 equiv.), acetal (0.2 mmol, 2.0 equiv.), Re₂O₇ (1 mol%), CH₂Cl₂, rt.

^bDiastereoselectivities were determined by ¹H NMR analysis of the crude reaction products.

^cYields of isolated products are listed.