Rearrangement enablers: α‐Alkoxy allenes undergo regioselective oxidative migration to give α′‐alkoxy enones in good to excellent yields (see scheme; Bn=benzyl, mCPBA=m‐chloroperbenzoic acid). The influence of substituents on the allene, at C1, and at the oxygen atom has been examined. In addition, an oxidative cascade delivers α′‐alkoxy oxiranyl ketones through diepoxidation.