Aerobic Catechol Oxidation Catalyzed by a Bis(μ-oxo)dimanganese(III,III) Complex via a Manganese(II)−Semiquinonate Complex

2005 ◽  
Vol 44 (10) ◽  
pp. 3473-3478 ◽  
Author(s):  
Yutaka Hitomi ◽  
Akira Ando ◽  
Hajime Matsui ◽  
Tomoyuki Ito ◽  
Tsunehiro Tanaka ◽  
...  
Keyword(s):  
Catechol Oxidation

scholarly journals Catalytic catechol oxidation by copper complexes: development of a structure–activity relationship

2015 ◽  
Vol 44 (27) ◽  
pp. 12196-12209 ◽  
Author(s):  
Erica C. M. Ording-Wenker ◽  
Maxime A. Siegler ◽  
Martin Lutz ◽  
Elisabeth Bouwman
Keyword(s):  
High Activity ◽  
Catalytic Oxidation ◽  
Copper Complexes ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Structure Activity ◽  
Catechol Oxidation

High activity for the catalytic oxidation of 3,5-di-tert-butylcatechol was achieved with complexes of ligands that stabilize the biomimetic CuII μ-thiolate complex, hinting at a similarity with the required Cu-oxo intermediates.

Anion coordination selective [Mn3] and [Mn4] assemblies: synthesis, structural diversity, magnetic properties and catechol oxidase activity

2015 ◽  
Vol 44 (26) ◽  
pp. 11741-11754 ◽  
Author(s):  
Moumita Pait ◽  
Michael Shatruk ◽  
Debashis Ray
Keyword(s):  
Magnetic Properties ◽  
Magnetic Property ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Structural Diversity ◽  
Manganese Complexes ◽  
Catechol Oxidase ◽  
Oxidation Study ◽  
Anion Coordination ◽  
Catechol Oxidation

The present manuscript reports the detail synthesis, characterization, magnetic property and catechol oxidation study of a family of mixed valent (MnIIMnIII) and trivalent (MnIII) manganese complexes from a Schiff base ligand.

Synthesis and X-ray crystallographic characterization of copper and iron complexes with tetradentate-N4 ligands: Reactivity towards catechol oxidation

Polyhedron ◽  
2005 ◽  
Vol 24 (18) ◽  
pp. 2921-2932 ◽  
Author(s):  
Anangamohan Panja ◽  
Sanchita Goswami ◽  
Nizamuddin Shaikh ◽  
Partha Roy ◽  
Mario Manassero ◽  
...  
Keyword(s):  
Iron Complexes ◽  
X Ray ◽  
Catechol Oxidation

Fentanyl decreases catecholamine metabolism measured by in vivo voltammetry in the rat locus coeruleus

1989 ◽  
Vol 67 (5) ◽  
pp. 532-536 ◽  
Author(s):  
Brian Milne ◽  
Luc Quintin ◽  
Jean Yves Gillon ◽  
Jean-François Pujol
Keyword(s):  
Carbon Fiber ◽  
Locus Coeruleus ◽  
Catecholamine Metabolism ◽  
In Vivo Voltammetry ◽  
Oxidation Current ◽  
Arterial Blood ◽  
Carbon Fiber Electrodes ◽  
Current Maximum ◽  
Catechol Oxidation

The objective of this study was to investigate under controlled conditions the effects of fentanyl on the rat locus coeruleus catechol oxidation current. Using differential normal pulse voltammetry combined with electrochemically treated carbon fiber electrodes to measure the catechol oxidation current, catecholamine metabolism can be reliably monitored. Male Sprague–Dawley rats weighing 500–600 g had carbon fiber electrodes implanted into the locus coeruleus under halothane – O2 – air anesthesia with controlled ventilation and muscle relaxation. Experiments consisted of four groups of rats given the following treatments: (A) saline (n = 6); (B) fentanyl, 10 μg∙kg−1 i.v. (n = 6); (C) naloxone, 800 μg∙kg−1 i.v. followed 2 min later by fentanyl, 10 μg∙kg−1 (n = 5); (D) clonidine, 200 μg∙kg−1 i.p. (n = 6). There was no significant change in the catechol oxidation current following saline. Fentanyl produced a significant (ANOVA, p < 0.05) decrease in the catechol oxidation current (maximum 32 min postinjection was 75.8 ± 4.6% of baseline). This decrease was prevented by a prior injection of naloxone. Clonidine produced a significant decrease in catechol oxidation current (maximum 40 min postinjection was 54.1 ± 7.0% of baseline). Systolic blood pressure was significantly decreased following clonidine and there were no significant changes in arterial blood gases throughout the experiments. The α2-adrenergic agonist clonidine and the opioid fentanyl produced a decrease in locus coeruleus catechol oxidation current measured by in vivo voltammetry, which monitors catecholamine turnover.Key words: catecholamine, clonidine, fentanyl, opiates, locus coeruleus, in vivo voltammetry.

A novel iron-enhanced pathway for base-catalyzed catechol oxidation by dioxygen

2006 ◽  
Vol 89 (2) ◽  
pp. 349-358
Author(s):  
Zoltán May ◽  
László I. Simándi ◽  
and Attila Vértes
Keyword(s):  
Catechol Oxidation

scholarly journals THE MECHANISM OF CATECHOL OXIDATION BY MYCOBACTERIUM BUTYRICUM1

1953 ◽  
Vol 66 (4) ◽  
pp. 404-406 ◽  
Author(s):  
W. R. Sistrom ◽  
R. Y. Stanier
Keyword(s):  
Catechol Oxidation
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