Copper catalysed oxidative α-sulfonylation of branched aldehydes using the acid enhanced reactivity of manganese(iv) oxide.
CHEMICAL COMMUNICATIONS(2020)
摘要
The oxidative coupling of secondary aldehydes and sulfinate salts is achieved using copper catalysis to form alpha-sulfonyl aldehydes. The use of an acidic co-solvent is important to adjust the oxidation potential of MnO2 as an oxidant. A broad range of sulfonylated aldehydes is prepared, and their further functionalisation is demonstrated. A dual ionic/radical pathway mechanism is proposed.
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关键词
branched aldehydes,manganese<scp>iv</scp>
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