A-oxides, reductive

Goldaman, J.A., Oxidation—Reduction Equilibria and Titration Curves , In Treatise on Analytical Chemistry, ed. by I.M. Kolthoff and PJ. Elving, 2nd ed., Vol. 3, New York, Interscience Publications, John Wiley Sons Inc., 1983. 

Cassidy, H. G. Kun, K. A. Oxidation—Reduction Polymers Redox Polymers, Interscience Publishers New York, 1965. 

Cordycepin-1-oxide (XLVIIl) is activated in Ehrlich ascites cells by reduction to cordycepin [220] and a similar A -oxide reduction probably underlies the action of 6-mercaptopurine-3-oxide (XLIX) [221]. 

It has been generally assumed that iron is transported across biological membranes in the ferrous form and that ferric iron would have to be reduced before it can be used by the organism. Thus, based on nutritional studies it has long been recognized that Fe(II) is1 more effectively absorbed than Fe(III), and this has been attributed to differences in the thermodynamic and kinetic stability of the complexes and chelates formed by these cations (for review, see Ref. 2). The experimental proof of a transport in the ferrous form has, however, not been given until quite recently in studies of iron transport in isolated mitochondria (23) as well as in enterobacteria (33). In rat liver mitochondria we have found that Fe(III) donated from a metabolically inert water soluble complex of sucrose interacts with the respiratory chain at the level of cytochrome c (and possibly cytochrome a) (23, 32) (Figure 1 B), which has a oxidation-reduction potential of around +250 mV (34) and is localized to the outer phase of the mitochondrial inner membrane (35). 

In the citric acid cycle, how many steps involve (a) oxidation-reduction, (6) hydration-dehydration, (c) substrate-level phosphorylation, and (d) decarboxylation List the enzymes responsible for these reactions. 

A. Oxidation-reduction reactions versus electron transfer reactions in organic chemistry and electrochemistry... 

A. Oxidation-Reduction Reactions Versus Electron Transfer Reactions in Organic Chemistry and Electrochemistry... 

Figure S3.4 Simplified Pourbaix diagram showing the stable species in the iron-water-oxygen system (a) oxidation-reduction boundaries that are not pH-dependent (b) acid-base boundaries that are not oxidation-dependent (c) as part (b), including a sloping boundary that is dependent on pH and oxidation potential (d) complete diagram, showing further sloping boundaries that delineate regions that are dependent on pH and oxidation potential...

The reaction includes aluminum metal as a reactant and products that contain aluminum ions. For this reaction, electrons must he transferred. That is, to make an aluminum cation, electrons must be removed from the metal. An oxidation reduction is one that involves transfers of electrons, (a) oxidation-reduction (b) oxidation-reduction ... 

Pyrrole-imidazole alkaloids structures can vary with regard to (a) oxidation, reduction or hydration of the 2-amino -4(5)-vinylimidazole unit, (b) dimerization, and (c) cyclization. The... 

Chapter 6, Same Types of Chemical Reactions, s) tematizes chemical reaction types and relates them to the periodic table. Reactions are classified as (a) oxidation-reduction reactions, (b) combination reactions, (c) decomposition reactions, (d) displacement reactions, (e) metathesis reactions (two types), and (f) gas-formation reactions. If desired, the material in this chapter can be presented at any later point in the course. 

PbCl2(s) + 2 NH4N03(fl( ) 99. a. oxidation-reduction single displacement... 

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