M. Allian et al., THE FORMATION OF PARA-BENZOQUINONE AND THE MECHANISM OF THE HYDROXYLATION OF PHENOL BY HYDROGEN-PEROXIDE OVER SOLID ACIDS, Catalysis letters, 28(2-4), 1994, pp. 409-415
The transient formation of para-benzoquinone during the hydroxylation
of phenol by hydrogen peroxide over solid acids is investigated. Forme
d by overoxidation of hydroquinone, para-benzoquinone is involved in a
n acid catalysed redox process repsonsible for the autocatalysis of th
e reaction and for a partial decomposition of hydrogen peroxide into o
xygen and water.