Perhydrolysis in Ethereal H 2 O 2 Mediated by MoO 2 (acac) 2 : Distinct Chemoselectivity between Ketones, Ketals, and Epoxides.

Ketones, ketals, and epoxides were converted into corresponding hydroperoxides in high yields by reaction with ethereal H2 O2 in the presence of a catalytic amount of MoO2 (acac)2 with distinct (to date unattainable) chemoselectivity.