Iron(II)-8-quinolino/MCM-41 is prepared. Its catalysis is studied in p
henol hydroxylation using H2O2 (30%) as oxidant. The experiment shows
that Iron(II)-8-quinolinol/MCM-41 has good catalytic activity and desi
red stability. Based on cyclic voltammetry, ESR, and UV-visible spectr
a studies of iron(II)-8-quinolinol complex in liquid phase, a radical
substitution mechanism is proposed and used to demonstrate the experim
ental facts clearly. (C) 1997 Academic Press.