Photosensitized Oxidation of Sulfides: Discriminating between the Singlet-Oxygen Mechanism and Electron Transfer Involving Superoxide Anion or Molecular Oxygen

2006 ◽  
Vol 12 (18) ◽  
pp. 4844-4857 ◽  
Author(s):  
Sergio M. Bonesi ◽  
Ilse Manet ◽  
Mauro Freccero ◽  
Maurizio Fagnoni ◽  
Angelo Albini
Keyword(s):  
Electron Transfer ◽  
Singlet Oxygen ◽  
Molecular Oxygen ◽  
Superoxide Anion ◽  
Photosensitized Oxidation ◽  
Oxidation Of Sulfides

Polydiene Oxidations with Singlet Oxygen

1972 ◽  
Vol 45 (2) ◽  
pp. 423-436 ◽  
Author(s):  
M. L. Kaplan ◽  
P. G. Kelleher
Keyword(s):  
Singlet Oxygen ◽  
Gas Phase ◽  
Molecular Oxygen ◽  
Ground State ◽  
Homogeneous Solution ◽  
Surface Oxidation ◽  
Electrodeless Discharge ◽  
Photosensitized Oxidation

Abstract Excited molecular oxygen in its singlet delta (1Δg) state can be made chemically in homogeneous solution and in the gas-phase by the electrodeless discharge of ground state oxygen. Both techniques have been used to perform oxidations of polydiene systems. Solutions of high cis, trans, and vinyl polybutadienes have been treated with singlet oxygen produced in situ. Only the high cis and high trans were oxidized, apparently by different mechanisms. Squalene, a model for polyisoprene, has been oxidized in solution and the initially formed hydroperoxides reduced and analyzed and found identical to the product from a photosensitized oxidation. Cis-polybutadiene films were treated with gas-phase singlet oxygen and the extent of surface oxidation was monitored spectroscopically and chemically.

Oxidation of sulfides and disulfides under electron transfer or singlet oxygen photosensitization using soluble or grafted sensitizers

2002 ◽  
Vol 1 (5) ◽  
pp. 347-354 ◽  
Author(s):  
S. Lacombe ◽  
H. Cardy ◽  
M. Simon ◽  
A. Khoukh ◽  
J. Ph. Soumillion ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Singlet Oxygen ◽  
Oxidation Of Sulfides

ChemInform Abstract: Superoxide Anion Generation via Electron-Transfer Oxidation of Catechin Dianion by Molecular Oxygen in an Aprotic Medium.

ChemInform ◽  
2010 ◽  
Vol 33 (11) ◽  
pp. no-no
Author(s):  
Ikuo Nakanishi ◽  
Kiyoshi Fukuhara ◽  
Kei Ohkubo ◽  
Tomokazu Shimada ◽  
Hisao Kansui ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Molecular Oxygen ◽  
Superoxide Anion ◽  
Superoxide Anion Generation ◽  
Aprotic Medium

Superoxide Anion Generation via Electron-Transfer Oxidation of Catechin Dianion by Molecular Oxygen in an Aprotic Medium

2001 ◽  
Vol 30 (11) ◽  
pp. 1152-1153 ◽  
Author(s):  
Ikuo Nakanishi ◽  
Kiyoshi Fukuhara ◽  
Kei Ohkubo ◽  
Tomokazu Shimada ◽  
Hisao Kansui ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Molecular Oxygen ◽  
Superoxide Anion ◽  
Superoxide Anion Generation ◽  
Aprotic Medium

ChemInform Abstract: Photoinduced Electron Transfer Oxidation of α-Methylstyrene with Molecular Oxygen Sensitized by Dimethoxybenzenes: A Non-Singlet-Oxygen Mechanism.

ChemInform ◽  
2010 ◽  
Vol 32 (25) ◽  
pp. no-no
Author(s):  
Tadashi Mori ◽  
Makoto Takamoto ◽  
Yoshimasa Tate ◽  
Junya Shinkuma ◽  
Takehiko Wada ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Singlet Oxygen ◽  
Molecular Oxygen ◽  
Photoinduced Electron Transfer

Photoinduced electron transfer oxidation of α-methylstyrene with molecular oxygen sensitized by dimethoxybenzenes: a non-singlet-oxygen mechanism

2001 ◽  
Vol 42 (13) ◽  
pp. 2505-2508 ◽  
Author(s):  
Tadashi Mori ◽  
Makoto Takamoto ◽  
Yoshimasa Tate ◽  
Junya Shinkuma ◽  
Takehiko Wada ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Singlet Oxygen ◽  
Molecular Oxygen ◽  
Photoinduced Electron Transfer
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