Convenient Access to Ester‐Containing Quinolinones through a Sequential Radical Alkoxycarbonylation/Cyclization/Hydrolysis Process

A practical protocol for the efficient synthesis of a series of structurally diverse ester-substituted quinoline-2,4-diones through sequential alkoxycarbonylation/addition/cyclization/hydrolysis with carbazates as eco-friendly ester sources was developed.