Catalytic Wacker‐type Oxidations Using Visible Light Photoredox Catalysis
ChemCatChem(2019)
摘要
A combined palladium/photoredox catalytic system for the efficient oxidation of terminal olefins to the corresponding methyl ketones is presented. The interplay of air, water, and light leads to a protocol in which the stoichiometric oxidants required for oxidative palladium catalysis are substituted with catalytic, single-electron transfer processes. Detailed mechanistic investigations revealed the role of the key components, in situ generated species, and catalysts. A broad range of substrates was examined in homogeneous as well as heterogeneous photoredox protocols, delivering the desired products in good yields.
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关键词
Oxidation,Ketone,Palladium,Copper-free,Superoxide
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