Co-oxidation of alcohols and aromatics

Hydroperoxy radicals have been found to hydroxylate benzene [2]. After H202 is formed in alcohol oxidations 

When 2-propanol is oxidized in the presence of benzene, the latter is hydroxylated to form phenol [116]. Phenol is oxidized in the course of the reaction giving a resin displaying a strong inhibiting action. Hydroxyla-tion of benzene is observed in 2-propanol oxidation at temperatures of 150—200°C. Phenol accumulates in concentrations up to 0.2 mole l-1. The ratio of rate coefficients is 

The ratio of fe(H02- + (CH3)2CH0H)/fe(H02- + C He) is 57 at 137°C. Hydroxylation of toluene with formation of cresols, in parallel with oxidation at the methyl group, takes place on co-oxidation of toluene and 2-propanol at 160—210° C [117]. Cresols are formed in a concentration of 0.03 mole l 1 when 2-propanol and toluene, in a ratio of 7 3, are oxidized at 165°C for 80 min [117]. The ratio of cresol isomers is ortho meta  

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