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Substituent-Dictated Partitioning of Intermediates on the Sulfide Singlet Oxygen Reaction Surface. A New Mechanism for Oxidative CS Bond Cleavage in α- …

A Toutchkine, D Aebisher…

文献索引:Toutchkine; Aebisher; Clennan Journal of the American Chemical Society, 2001 , vol. 123, # 21 p. 4966 - 4973

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被引用次数: 33

摘要

The reactions of singlet oxygen with 17 sulfides bearing either anion or radical stabilizing substituents are reported. The abilities of substituents to modify product compositions in both the oxidative cleavage and sulfide oxidation pathways are analyzed in terms of partitioning of the hydroperoxy sulfonium ylide intermediate. Evidence is presented that suggests that the hydroperoxy sulfonium ylide exists in both diradical and zwitterionic forms. In addition, ...