Regio- and stereocontrolled dimerisation of allenic alcohols via introduction of an acetoxy group using ruthenium catalysis

Acetate-introduced dimers of allenes can be produced from the ruthenium catalysed reaction of allenic alcohols with AcOH. Incorporation of acetate component is activated in the presence of Cu(OAc)2 and amine, and various allenic alcohols can be transformed to the corresponding dimers in a regio- and stereoselective manner.