Abstract Nine different acetals have been oxidized in the presence of Co (OOCCH 3) 2. 4 H 2 O under isobaric conditions (0.1-0.2 MPa O 2 while following the uptake of molecular oxygen. The reactivity of acetals was expressed by the rate constants of the autocatalytic model of oxidation. The main products of the oxidation are alcohols, esters and acids. The distribution of products and the total reactivity of acetals are controlled by the structure of ...