Synthesis of tert-Butyl Peroxyacetals from Benzyl, Allyl, or Propargyl Ethers via Iron-Promoted C-H Bond Functionalization

When benzyl, allyl, and propargyl ethers were treated with tert-butyl hydroperoxide and a catalytic amount of iron(III) acetylacetonate, tert-butyl peroxyacetals were produced in good to excellent yields, via C?H bond functionalization. This method is also applicable to ethylene acetals of unsaturated aldehydes to give peroxyorthoesters.