A 100 % atom-efficient synthesis of ketones from electron-deficient internal olefins was achieved using O2 as a “green” oxidant (see scheme, DMA=N,N-dimethylacetamide, EWG=electron-withdrawing group). Various electron-deficient olefins were oxidized to the corresponding ketones with over 99 % selectivity and without the formation of olefin isomers or their oxidized products.
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