化学
IMes公司
反应性(心理学)
氢化物
化学计量学
催化作用
苯醌
还原消去
氧化还原
药物化学
反应机理
反应中间体
光化学
无机化学
有机化学
金属
卡宾
替代医学
病理
医学
作者
Nattawan Decharin,Shannon S. Stahl
摘要
Benzoquinone (BQ) and O(2) are among the most common stoichiometric oxidants in Pd-catalyzed oxidation reactions. The present study provides rare insights into mechanistic differences between BQ and O(2) in their reactivity with a well-defined Pd-hydride complex, Pd(IMes)(2)(H)(O(2)CPh) (1). BQ promotes the reductive elimination of PhCO(2)H from 1 and catalyzes the formation of a Pd(II)-OOH complex when this reaction is carried out under aerobic conditions. These results have important implications for Pd-catalyzed oxidation reactions.
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