Indolo[2,1-b]quinazolin-12(6H)-one derivatives are prevalent in many synthetic intermediates, pharmaceuticals, and organic materials. Herein, we developed a photoredox radical cascade cyclization reaction that uses visible light as the primary energy input to promote the reaction, leading to a series of indolo[2,1-b]quinazolin-12(6H)-one derivatives under oxygen conditions.
Key words
photoredox - radical cyclization - molecular oxygen - indolo[2,1-b]quinazolin-12(6H)-one derivatives - metal-free
