Free radicals in the electrochemical reduction of certain mononitro and dinitro derivatives of pyridine

1993 ◽  
Vol 29 (8) ◽  
pp. 918-925
Author(s):  
Ya. Stradyn' ◽  
R. Gavars ◽  
L. Baumane ◽  
B. Vigante ◽  
G. Duburs
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction ◽  
Derivatives Of

Free radicals in the electrochemical reduction of derivatives of 3,5-dinitro-1,2-dihydropyridine

1997 ◽  
Vol 33 (2) ◽  
pp. 184-189 ◽  
Author(s):  
Ya. Stradyn' ◽  
R. Gavar ◽  
L. Baumane ◽  
B. Vigante ◽  
G. Dubur
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction ◽  
Derivatives Of

Free radicals of electrochemical reduction of derivatives of 3-nitro-1,4-dihydropyridines

1995 ◽  
Vol 31 (3) ◽  
pp. 307-314 ◽  
Author(s):  
Ya. Stradyn' ◽  
L. Baumane ◽  
R. Gavars ◽  
B. Vigante ◽  
G. Duburs
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction ◽  
Derivatives Of

Electrochemical reduction of para-substituted 2-acyl-5-phenylfuranes in dimethylformamide

1981 ◽  
Vol 46 (2) ◽  
pp. 498-502 ◽  
Author(s):  
Jozef Černák ◽  
František Tomanovič ◽  
Andrej Staško ◽  
Anna Fedosyevna Oleinikova ◽  
Jaroslav Kováč
Keyword(s):  
Electrochemical Reduction ◽  
Unpaired Electron ◽  
Anion Radical ◽  
Electron Wave ◽  
Epr Method ◽  
Electron Center ◽  
Nitrogen Nucleus ◽  
Nitro Derivatives ◽  
Stable Anion ◽  
Derivatives Of

para Substituted chloro, bromo, and nitro derivatives of 2-acyl-5-phenylfurane are reduced polarographically in a one-electron wave to the corresponding anion radicals, which were studied by the EPR method. The reduction of nitro derivatives, studied by the Kalousek switch, is reversible and leads to a stable anion radical with an unpaired electron center on the nitrogen nucleus; the reduction of the halogen derivatives is only partly reversible and leads to unstable ketyl radicals. The bromo derivatives give polarographic maxima typical for concurrent reactions.

ChemInform Abstract: Free Radicals in the Electrochemical Reduction of Some Mono- and Dinitro-Substituted Pyridines

ChemInform ◽  
2010 ◽  
Vol 25 (20) ◽  
pp. no-no
Author(s):  
J. STRADIN ◽  
R. GAVARS ◽  
L. BAUMANE ◽  
B. VIGANTE ◽  
G. DUBURS
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction ◽  
Substituted Pyridines

Free radicals from electrochemical reduction of hexahydroquinolones and hexahydroisoquinolones

1999 ◽  
Vol 35 (7) ◽  
pp. 809-812
Author(s):  
R. Gavars ◽  
L. Baumane ◽  
J. Stradins ◽  
B. Vigante ◽  
J. Ozols ◽  
...  
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction

ChemInform Abstract: Electrochemical Reduction of 1-Sulfonylbenzo(c,d)indolin-2-ones and Structure of Free Radicals Formed

ChemInform ◽  
2010 ◽  
Vol 25 (20) ◽  
pp. no-no
Author(s):  
J. STRADIN ◽  
L. BAUMANE ◽  
R. GAVARS ◽  
V. I. MAGDA ◽  
YU. V. SAMUSENKO
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction

Free radicals in the electrochemical reduction of 1,2-dihydro-3-nitropyridine derivatives

1996 ◽  
Vol 32 (9) ◽  
pp. 1047-1051 ◽  
Author(s):  
Ya. Stradyn' ◽  
R. Gavats ◽  
L. Baumane ◽  
B. Vigante ◽  
G. Duburs
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction

A Comparison Between the Inflammatory Mediators Produced by the Blue-Tongue Lizard (Tiliqua-Scincoides) and Human White Blood-Cells

1988 ◽  
Vol 36 (2) ◽  
pp. 209 ◽  
Author(s):  
SR Mccoll ◽  
CB Daniels
Keyword(s):  
Arachidonic Acid ◽  
Free Radicals ◽  
Blood Cells ◽  
White Blood Cells ◽  
Leukotriene B4 ◽  
Biologically Active ◽  
Hydroxyeicosatetraenoic Acid ◽  
Oxygen Derived Free Radicals ◽  
Derivatives Of ◽  
Human White Blood Cells

Human white blood cells, particularly neutrophils and macrophages produce several biologically active molecules including oxygen-derived free radicals and some metabolites of arachidonic acid which are involved in mechanisms of host defence. White blood cells of the blue-tongue lizard Tiliqua scincoides produce certain derivatives of arachidonic acid which include prostaglandins, thromboxane and 12- and 15-hydroxyeicosatetraenoic acid. The ability to produce these compounds indicates that these animals possess the enzymes cyclooxygenase, 12- and 15-lipoxygenase, T. scincoides white blood cells did not produce leukotriene B4 or 5-hydroxyeicosatetraenoic acid indicating that, unlike human white blood cells, they do not possess a 5-lipoxygenase enxyme. T. scincoides cells are also capable of producing the oxygen-derived free radical superoxide enzyme.

Eprspectra of free radicals generated by electrochemical reduction of 3-nitrohexahydroquinol-5-ones and 4-nitrohexahydroisoquinol-8-ones

1999 ◽  
Vol 35 (4) ◽  
pp. 450-454
Author(s):  
R. Gavars ◽  
L. Baumane ◽  
J. Stradins ◽  
B. Vigante ◽  
J. Ozols ◽  
...  
Keyword(s):  
Free Radicals ◽  
Electrochemical Reduction
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