Hadrien

Direct, oxidative metal-catalyzed CH functionalizations of arenes are important in synthetic organic chemistry. Often, (over-)stoichoimetric amounts of organic or inorganic oxidants have to be used in these reactions. The combination of rhodium and photoredox catalysis with visible light allows the direct CH olefination of arenes. Small amounts (1 mol %) of a photoredox catalyst resulted in the efficient CH functionalization of a broad range of substrates under mild conditions.

Much milder and environmentally friendly reaction conditions can be used for oxidative Heck reactions through the combined use of rhodium and redox catalysis. This allows the rhodium complex to be catalytically regenerated. A broad range of substrates was tolerated in the reaction and afforded different amides in good to very good yields.