1.3.5- trihydroxybenzene degradation

The degradation of resorcinol can take place by several pathways that are initiated by hydroxylation. 1,2,4-Trihydroxybenzene is degraded by (a) 1 2 dioxygenation and... 

Reichenbecher WW, B Schink (1997) Desulfovibrio inopinatus sp nov, a new sulfate-reducing bacterium that degrades hydroxyhydroquinone (1,2,4-trihydroxybenzene). Arch Microbiol 168 338-344. 

Trihydroxybenzene is an intermediate in the degradation by Phanerochaete chrysosporium of vanillate, 2,4-dichlorophenol, 2,4-dinitrophenol, and 2,7-dichlorodibenzo[l,4]dioxin (Chapter 6, Sections 6.5.2,6.8.2 and 6.3.2, respectively), and its degradation is mediated by a dioxygenase that carries out intradiol ring fission (Rieble et al. 1994). 

Degradation of pentachlorophenol by R. chlorophenolicus (Apa-jalahti and Salkinoja-Salonen 1987b) (see Figure 6.84) and 2,4,6-trichlorophenol by a strain of Azotobacter sp. (Latus et al. 1995) both involve formation of 1,2,4-trihydroxybenzene as an intermediate. 

Targeted experiments can be developed to investigate the phenol photocatalytic conversion mechanism (Salaices et al., 2004). In this context, four main intermediates of phenol photo-degradation are identified para-dihydroxybenzene (p — DHB), ortho-dihydroxybenzene (o — DHB), 1,2,4-trihydroxybenzene (1,2,4 — 77/6), and 1,4-Benzoquinone (I, 4 — BQ). 

Scheme 5.1 Proposed degradation pathway of TNT and TNB by modified Fenton reaction by Hess [39]. Initial TNT- and TNB-hydroperoxyl radical formation led to step denitration and hydroxylation of the aromatic ring. The oxidation of phloroglucinol (1,3,5-trihydroxybenzene)...

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