Direct arylsulfonylation of arylethenes with aryl iodides and sodium metabisulfite to access β-keto sulfones is described. In this reaction, rongalite (sodium hydroxymethanesulfinate) and sodium metabisulfite serve as the radical promoter and the sulfur dioxide surrogate, respectively.

中文翻译：

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雕白粉促进自由基级联反应合成β-酮砜

描述了用芳基碘化物和焦亚硫酸钠对芳基乙烯进行直接芳基磺酰化以得到 β-酮砜。在该反应中，雕白粉（羟基甲烷亚磺酸钠）和焦亚硫酸钠分别作为自由基促进剂和二氧化硫替代物。