3, y-Unsalurated esters are of interest for the synthesis of mono-and sesquiterpenes where the alkene linkage is destined for cleavage to a dialdehyde as well as for the synthesis of y- butyrolactones. A general method for the preparation of deconjugated esters of this type from allylic alcohols is described. The method is useful for the construction of P, y- unsaturated esters where the K bond is disubstituted and part of a cyclic array. The ...