PhIO Mediated One‐Pot Synthesis of Pyrroloquinolinediones from ortho‐Carbonyl Anilines and Maleimides

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An effective, green, mild, and metal‐free hypervalent iodine‐mediated approach for the synthesis of pyrroloquinolinediones from ortho‐carbonyl anilines and maleimides in a one‐pot manner at room temperature has been developed. This proposed protocol can synthesize biologically active pyrroloquinolinediones in a one‐pot manner utilizing readily available starting materials. This protocol generates H2O as the only by‐product during the reaction and shows a high atom economy. Operational simplicity, moderate reaction conditions, high atom economy, and high yield are some key features of this protocol.