A hydroxyl group-directed, highly regio- and stereoselective transposition of allylic alcohols based on rhenium catalysis has been developed. The method is suitable for a direct isomerization of acetals into the thermodynamically preferred isomer as long as one of the hydroxyl groups is allylic. This method will expand the scope of rhenium-catalyzed alcohol transpositions for complex molecule synthesis.
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Herrmann et al. (2010) studied this question.
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