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1,3-Diol synthons, protected as acetonides or benzylidene acetals, may be synthesized efficiently from homoallylic alcohols and acetone or benzaldehyde by oxymercuration of the derived hemiketals and hemiacetals with HgClOAc. The use of catalytic amounts of Yb(OTf)(3) is crucial to the success of the reaction, which was determined to be reversible.
Dreher et al. (Sat,) studied this question.