A convenient, highly selective and metal-free synthesis of sulfoxides from alkenes and thiols using NHPI as an inexpensive and reusable organophotoredox catalyst is reported. The protocol involves radical thiol-ene/oxidation reaction cascade and utilizes visible light and air (O₂) as inexpensive, readily available, non-toxic and eco-sustainable reagents to afford up to 96% yields of the product at room temperature.

中文翻译：

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通过硫醇-烯/氧化反应级联的可见光激活的亚砜选择性合成

据报道，使用NHPI作为廉价且可重复使用的有机光氧化还原催化剂，可从烯烃和硫醇方便，高度选择性且无金属地合成亚砜。该方案涉及自由基硫醇-烯/氧化反应级联，并利用可见光和空气（O ₂）作为廉价，易于获得，无毒且生态可持续的试剂，在室温下提供高达96％的产物收率。