Aromatic carboxylic acids undergo homolytic decarboxylation in aromatic solvents at 125- 200'in the presence of oxygen and large amounts of di-t-butyl peroxide or t-butyl hydroperoxide. Cobalt salts exert a strong catalytic effect on the reaction, and evidence that this effect results from direct oxidation of the substrate by cobalt (II1) is presented. Decarboxylation of the aroyloxy radicals thus formed gives aryl radicals, whose attack ...
![2',3'-dichloro-[1,1',-biphenyl]-3-acetic acid ethyl ester Structure](https://image.chemsrc.com/caspic/306/7111-62-8.png)
