acetic acid; molybdenum hexacarbonate in tetrahydrofuran 18 h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

water; molybdenum hexacarbonate in 1,4-dioxane 15 h; Heatingother solvents, other H+ source, other times; other allylic acetates; Product distribution;