Phenol hydroxylation by iron(II) phenanthroline: The reaction mechanism

Phenol hydroxylation catalyzed by iron(II)-1,10-phenanthroline is investigated through kinetics, ESR, UV-VIS as well as cyclic voltammogram studies. The optimum reaction conditions are obtained for diphenols production. Radical substitution mechanism is first proposed to explain the effects of pH, r...

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Bibliographic Details
Published in:Journal of molecular catalysis. A, Chemical Chemical, 1996-10, Vol.112 (1), p.15-22
Main Authors: Liu, Chibiao, Ye, Xingkai, Zhan, Ruiyun, Wu, Yue
Format: Article
Language:English
Subjects:
Catalysis
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Iron(II)-1,10-phenanthroline
Phenol hydroxylation
Radical substitution
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Phenol hydroxylation catalyzed by iron(II)-1,10-phenanthroline is investigated through kinetics, ESR, UV-VIS as well as cyclic voltammogram studies. The optimum reaction conditions are obtained for diphenols production. Radical substitution mechanism is first proposed to explain the effects of pH, reaction medium and other factors on the phenol hydroxylation with H 2O 2 as oxidant, and found that the coexisting of iron(II)-1,10-phenanthroline and iron(III)-1,10-phenanthroline is the key for phenol hydroxylation to occur with H 2O 2 as oxygen donor.
ISSN:1381-1169
1873-314X
DOI:10.1016/1381-1169(96)00238-5