The synthesis of tetraphenylresorcinol, 2, 4, 6-triphenylresorcinol and 2, 4- diphenylnaphthoresorcinol is described. During the oxidation of these phenyl-substituted resorcinols carbon monoxide is evolved followed by a ring contraction to phenyl-substituted cyclopentadienones. The deeply colored solutions obtained on oxidation give intensive ESR- signals with fine structure. We suggest that the reaction proceeds via a biradical of ...
![[m-Terphenyl]-4,6-diol(8CI) Structure](https://image.chemsrc.com/caspic/165/19546-06-6.png)
