Sedych A. Reactions of hydroxytoluols and their oxygen containing derivatives with ozone in the liquid medium

It was found that in the solution of acetic oxide hydroxytoluoles react with ozone in the form of acetoxytoluoles. In the conditions of non-catalytic reaction acetoxytoluoles are oxidized by non-chain way. And ozone is used into two ways (routes): non-chain way at the initial stage and chain one - with the products of aromatic ring ozonolysis. At the temperatures up to 288K ozone is used according to the binary bonds of benzolyc ring forming monomeric hydroperoxides and to a methyl group forming acetobenzoic acid, acetoxybenzyl acetate, acetoxybenzyliden diacetate. In the presence of mineral acid the mechanism of oxidation doesn't change dut acetoxybenzoic acids aren't procuced. The addition of manganese (II) in the concentrations compared with a substrate in the oxidation system of acelate prevents, to great extend, the ozonolysis of the aromatic ring. The main reaction products are acetoxybenzyl acetates. It is shown, that in the presence of manganous bromide catalyst the oxidation rate increases almost twice but the required concentration of manganous acetate (II) decreases, and acetoxybenzylidene diacetates are produced as the main reaction products.