F. Cui et D. Dolphin, IRON PORPHYRIN-CATALYZED OXIDATION OF LIGNIN MODEL COMPOUNDS - OXIDATION OF PHENYLPROPANE AND PHENYLPROPENE MODEL COMPOUNDS, Canadian journal of chemistry, 73(12), 1995, pp. 2153-2157
The oxidation of 1-(4-ethoxy-3-methoxyphenyl)propane (2) and 1-(4-etho
xy-3-methoxyphenyl)propene (3) by meso-tetra(2,6-dichloro-3-sulphonato
phe)porphyrin iron chloride (TDCSPPFeCl, 1) and tert-butylhydroperoxid
e (t-BuOOH) are discussed. In addition to a C-alpha-hydroxylation prod
uct, demethoxylation and direct aromatic ring cleavage products were f
ound in the oxidation of 2. When 3 was oxidized by 1 and t-BuOOH in aq
ueous acetonitrile, an acetonitrile-incorporated product was found. A
mechanism for the oxidation of 3 is proposed.