Modeling Tyrosinase Monooxygenase Activity. Spectroscopic and Magnetic Investigations of Products Due to Reactions between Copper(I) Complexes of Xylyl-Based Dinucleating Ligands and Dioxygen:  Aromatic Ring Hydroxylation and Irreversible Oxidation Products†

1998 ◽  
Vol 37 (26) ◽  
pp. 6597-6605 ◽  
Author(s):  
Debalina Ghosh ◽  
Rabindranath Mukherjee
Keyword(s):  
Aromatic Ring ◽  
Oxidation Products ◽  
Monooxygenase Activity ◽  
Dinucleating Ligands ◽  
Irreversible Oxidation ◽  
Ring Hydroxylation

Characterization of a polycyclic aromatic ring-hydroxylation dioxygenase from Mycobacterium sp. NJS-P

Chemosphere ◽  
2017 ◽  
Vol 185 ◽  
pp. 67-74 ◽  
Author(s):  
Jun Zeng ◽  
Qinghe Zhu ◽  
Yucheng Wu ◽  
Hong Chen ◽  
Xiangui Lin
Keyword(s):  
Aromatic Ring ◽  
Polycyclic Aromatic ◽  
Ring Hydroxylation

Two Novel Reactions of a Ruthenium-Coordinated Phenazine – Oxidative Aromatic Ring Hydroxylation and Dimerization via a New C–N Bond Formation

2007 ◽  
Vol 2007 (3) ◽  
pp. 412-421 ◽  
Author(s):  
Priyabrata Banerjee ◽  
Golam Mostafa ◽  
Alfonso Castiñeiras ◽  
Sreebrata Goswami
Keyword(s):  
Aromatic Ring ◽  
Bond Formation ◽  
Ring Hydroxylation

Aromatic ring hydroxylation of flavanones by dimethyldioxirane

2000 ◽  
Vol 41 (7) ◽  
pp. 1087-1090 ◽  
Author(s):  
Roberta Bernini ◽  
Enrico Mincione ◽  
Anna Sanetti ◽  
Maurizio Mezzetti ◽  
Paolo Bovicelli
Keyword(s):  
Aromatic Ring ◽  
Ring Hydroxylation

Nanocrystalline ZnO Thin Film for Photocatalytic Purification of Water

2008 ◽  
Author(s):  
Sawsan A. Mahmoud ◽  
A. Abdel Aal ◽  
Ahmed K. Aboul-Gheit
Keyword(s):  
Thin Film ◽  
Calcination Temperature ◽  
Aromatic Ring ◽  
Oxidation Products ◽  
Zno Thin Film ◽  
Nanostructured Catalyst ◽  
Calcination Time ◽  
Metal Evaporation ◽  
Thin Film Catalyst ◽  
Purification Of Water

A thin film ZnO nanostructured catalyst exhibited a significantly greater superiority for the photodegradation of 2, 4, 6-TCP in water over photolysis via irradiation with UV of 254 nm wavelength. This ZnO photocatalyst was prepared via Zn metal evaporation and deposition on a glass sheet followed by calcination ature from 350 to 500 °C and the calcination time from 1 to 2h shows via SEM photography a decrease of ZnO nanoparticales sizes sheet followed by calcination (oxidation). Increasing the calcination temperature from 350 to 500 °C and the calcination time from 1 to 2h shows via SEM photography a decrease of ZnO nanoparticales sizes as well as the shape of their crystals finer needles, for which the crystallinity enhances as revealed by XRD. 2, 4, 6-Trichlorophenol was used as a model pollutant in water. Its photolysis using UV only or photocatalysis using UV irradiation in presence of the ZnO thin film catalyst indicated aromatic intermediates, which suffered of Cl by OH, addition of OH in a bare carbon in the aromatic ring, whereas in Photocatalysis deeper oxidation products, e.g., quinones and hydroquinones were also formed.

Occurrence of the NIH Shift upon the Cytochrome P450-Catalyzed in Vivo and in Vitro Aromatic Ring Hydroxylation of Fluorobenzenes

1998 ◽  
Vol 11 (5) ◽  
pp. 503-512 ◽  
Author(s):  
Janneke Koerts ◽  
Ans E. M. F. Soffers ◽  
Jacques Vervoort ◽  
Adrie De Jager ◽  
Ivonne M. C. M. Rietjens
Keyword(s):  
Cytochrome P450 ◽  
Aromatic Ring ◽  
Ring Hydroxylation
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