A new “green” method for the synthesis of β-iodovinyl aryl and alkyl sulfones with high yield and selectivity has been developed. The reaction proceeds in ethanol at room temperature via irradiation with green light and with Rose Bengal as the photocatalyst. The product precipitates through addition of water and does not need any purification. The photocatalyst was recovered and reused several times after the removal of the solvent. It showed a slight decrease in activity only after the 4th cycle.

中文翻译：

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绿色条件下内炔的光催化碘磺酰化

开发了一种高产率和选择性合成β-碘乙烯基芳基和烷基砜的新“绿色”方法。该反应在室温下在乙醇中通过绿光照射和玫瑰红作为光催化剂进行。产品通过加水沉淀，不需要任何纯化。除去溶剂后，光催化剂被回收并重复使用几次。仅在第 4 个周期后才显示活性略有下降。