Role of Sulfide Radical Cations in Electron Transfer Promoted Molecular Oxygenations at Sulfur
作者:Edward L. Clennan、Chen Liao
DOI:10.1021/ja710301s
日期:2008.3.1
participation of singletoxygen. This argues for different reaction mechanisms for all three sensitizers. However, both the quinolinium and pyrylium-cation-sensitized reactions display all of the characteristics of electron-transfer-initiated photooxygenations. Both sensitizers were quenched at nearly diffusion-limited rates by 1 and 2. Laser flash photolysis of mixtures of either sensitizer and 1 or 2 resulted
Reaction of singlet oxygen with sulfide: A similarity of singlet oxygenation and coupling reaction of cation radical and superoxide ion
作者:Takeshi Akasaka、Wataru Ando
DOI:10.1016/s0040-4039(01)80850-9
日期:1985.1
Photosensitized oxygenation of 5H,7H-dibenzo[b,g][1,5]dithiocin afforded the sulfoxides. The reaction of its cation radical derived from oxidation by nitrosyl tetrafluoroborate with superoxideion gave the same products.