ChemInform Abstract: CHEMISTRY OF SUPEROXIDE ION. 4. SINGLET OXYGEN IS NOT A MAJOR PRODUCT OF DISMUTATION

1980 ◽  
Vol 11 (28) ◽  
Author(s):  
C. S. FOOTE ◽  
F. C. SHOOK ◽  
R. A. ABAKERLI
Keyword(s):  
Singlet Oxygen ◽  
Major Product ◽  
Superoxide Ion

Chemistry of superoxide ion. 4. Singlet oxygen is not a major product of dismutation

1980 ◽  
Vol 102 (7) ◽  
pp. 2503-2504 ◽  
Author(s):  
C. S. Foote ◽  
F. C. Shook ◽  
R. A. Abakerli
Keyword(s):  
Singlet Oxygen ◽  
Major Product ◽  
Superoxide Ion

Oxaluric Acid as the Major Product of Singlet Oxygen-Mediated Oxidation of 8-Oxo-7,8-dihydroguanine in DNA

2000 ◽  
Vol 122 (51) ◽  
pp. 12622-12628 ◽  
Author(s):  
Victor Duarte ◽  
Didier Gasparutto ◽  
Lydia F. Yamaguchi ◽  
Jean-Luc Ravanat ◽  
Glaucia R. Martinez ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Major Product ◽  
Mediated Oxidation ◽  
Oxaluric Acid

Photochemistry of water-soluble quinones. Production of the hydroxyl radical, singlet oxygen and the superoxide ion

1999 ◽  
Vol 127 (1-3) ◽  
pp. 57-65 ◽  
Author(s):  
Antonio E. Alegrı́a ◽  
Amaris Ferrer ◽  
Glysette Santiago ◽  
Elsa Sepúlveda ◽  
Wilmarie Flores
Keyword(s):  
Hydroxyl Radical ◽  
Singlet Oxygen ◽  
Water Soluble ◽  
Superoxide Ion

Reaction of singlet oxygen with 2-pyrazoline: implication for cation radical - superoxide ion pair intermediate

Tetrahedron ◽  
1986 ◽  
Vol 42 (14) ◽  
pp. 3807-3812 ◽  
Author(s):  
Takeshi Akasaka ◽  
Masaru Nakagawa ◽  
Yuko Nomura ◽  
Rikiya Sato ◽  
Kazuo Someno ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Cation Radical ◽  
Ion Pair ◽  
Superoxide Ion

Controlled oxidations of benzo[a]pyrene

1986 ◽  
Vol 64 (7) ◽  
pp. 1247-1253 ◽  
Author(s):  
E. Lee-Ruff ◽  
H. Kazarians-Moghaddam ◽  
M. Katz
Keyword(s):  
Singlet Oxygen ◽  
High Field ◽  
Chemical Shifts ◽  
Product Distribution ◽  
Major Product ◽  
Nuclear Overhauser Enhancement ◽  
Nuclear Overhauser ◽  
Singlet Oxygen Reaction ◽  
Proton Chemical Shifts ◽  
Oxygen Reaction

The four diones derived from benzo[a]pyrene oxidation have been characterized by high-field nuclear magnetic resonance techniques including 2-D COSY and selective nuclear Overhauser enhancement. All the proton chemical shifts for these four quinones have been uneqivocally assigned. The direct photoxidation of benzo[a]pyrene gives a product distribution very similar to the TPP photosensitized oxygenation, suggesting singlet oxygen is involved in the former. A major product, which was characterized as the 6-seco derivative 6 and not previously reported, was detected in the singlet oxygen reaction. The presence of this product suggests a possible mechanism for quinone formation in the singlet oxygen reaction. One-electron oxidations of benzo[a]pyrene were carried out using tris(p-bromophenyl)aminium hexachloroantimonate and quenching of the radical cation with superoxide or water. The product distribution in this case was quite different from that obtained in the direct photooxidation.

Sign in / Sign up

Export Citation Format

Share Document