A combined palladium- and photoredox-catalyzed C-H olefination enables the synthesis of indoles. By using visible light, the direct C-H activation of aromatic enamines can be achieved and a variety of indole derivatives can be obtained in good yields under mild reaction conditions.

A combination of ruthenium and photoredox catalysis allowed the ortho olefination of phenols. Using visible light, the direct C-H functionalization of o-(2-pyridyl)phenols occurred, and diverse phenol ethers were obtained in good yields. The regeneration of the ruthenium catalyst was accomplished by a photoredox-catalyzed oxidative process.

A catalytic (E)- to (Z)-isomerization of olefins using a photoredox catalyst under mild reaction conditions is presented. A variety of (Z)-alkenes can be prepared in the presence of visible light. A new reaction system allows an easy and efficient scale-up, as well as a continuous flow process in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by simple phase separation.

Eine kombinierte Palladium-und Photoredox-katalysierte C-H-Olefinierung ermçglicht die Synthese von Indolen. Mithilfe von sichtbarem Licht gelingt die direkte C-H-Aktivierung von aromatischen Enaminen, wobei eine Vielzahl von Indolderivaten in guten Ausbeuten unter milden Reaktionsbedingungen zugänglich wird.

Eine Kombination von Ruthenium-und Photoredoxkatalysatoren ermçglicht die ortho-Olefinierung von Phenolen. Mithilfe von sichtbarem Licht kann die direkte C-H-Funktionalisierung von o-(2-Pyridyl)phenolen erfolgen, wobei diverse Phenolether in guten Ausbeuten erhalten werden. Die Regenerierung des Rutheniumkatalysators erfolgt durch einen photoredoxkatalysierten oxidativen Prozess.