Visible‐Light Driven Copper‐Catalyzed Oxidative Alkylation of Styrenes with Sulfonium Salts and Alcohol or Acids

We developed a three‐component intermolecular alkoxysulfurization or estersulfurization of styrenes for the synthesis of emote alkoxy (ester) substituted thioether derivatives through copper/visible light catalyzed strategy. A variety of substrates were successfully converted into the desired sulfur‐containing products in moderate to good yields, demonstrating good functional group tolerance and excellent regioselectivity. Moreover, this method can be readily applied to modify bioactive molecules. A range of substrates, including perillyl alcohol, citronellol, geraniol, L ‐menthol, and cholesterol, were successfully install to olefins with high selectivity.