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[摘要]：The direct oxidation of ether sp(3) C-H bonds using the new reagent system mCPBA/CCl3CN/MeCN has been developed. CCl3CN in MeCN drastically alters the reactivity of m-chloroperbenzoic acid (mCPBA), and chemoselective transformation of methyl ethers to ketones was realized under mild conditions. Radical-based mCPBA-mediated oxidation was suggested as the reaction mechanism. The present new reaction expands the utility of methyl ethers as stable synthetic precursors of carbonyl compounds and of mCPBA as a radical-based C-H oxidizing agent. |
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