The Reactions of O2(1Δg) with Anancomeric 1,3-Dithianes. The First Experimental Evidence in Support of a Hydroperoxy Sulfonium Ylide as a Precursor to Sulfoxide on the Sulfide Singlet Oxygen Reaction Surface

1999 ◽  
Vol 64 (15) ◽  
pp. 5620-5625 ◽  
Author(s):  
A. Toutchkine ◽  
E. L. Clennan
Keyword(s):  
Singlet Oxygen ◽  
Experimental Evidence ◽  
Reaction Surface ◽  
Sulfonium Ylide ◽  
Singlet Oxygen Reaction ◽  
Oxygen Reaction

Application of the Criegee Rearrangement in Singlet Oxygen Reaction: A High Yield of Diosone from the Photooxygenation of Pseudodiosgenin Diacetate.

ChemInform ◽  
2005 ◽  
Vol 36 (34) ◽  
Author(s):  
Yan Zhang ◽  
Zhang-Hua Zeng ◽  
Yong-Yong Liu ◽  
Xue-Xin Cheng ◽  
Xue-Song Wang ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
High Yield ◽  
Singlet Oxygen Reaction ◽  
Oxygen Reaction

Ab initio study on mechanisms of singlet oxygen reaction with ethylene

2010 ◽  
Vol 12 (1) ◽  
pp. 26-32 ◽  
Author(s):  
De-Zhan Chen ◽  
Bao-Ji Chen ◽  
Shi-Guang Ning
Keyword(s):  
Singlet Oxygen ◽  
Ab Initio ◽  
Ab Initio Study ◽  
Singlet Oxygen Reaction ◽  
Oxygen Reaction

Application of the Criegee Rearrangement in Singlet Oxygen Reaction: A High Yield of Diosone from the Photooxygenation of Pseudodiosgenin Diacetate

2005 ◽  
Vol 34 (3) ◽  
pp. 368-369 ◽  
Author(s):  
Yan Zhang ◽  
Zhang-Hua Zeng ◽  
Yong-Yong Liu ◽  
Xue-Xin Cheng ◽  
Xue-Song Wang ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
High Yield ◽  
Singlet Oxygen Reaction ◽  
Oxygen Reaction

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.

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