Iron Catalyzed Cascade Protocol for the Synthesis of Pyrrolo[1, 2‐a]quinoxalines: A Powerful Tool to Access Solid State Emissive Organic Luminophores

An alluring iron catalyzed cascade process has been developed for the synthesis of pyrrolo[1, 2-a]quinoxalines by using 1-(2-aminoaryl)pyrrole and arylacetic acids. This method involves oxidative decarboxylation of arylacetic acids into aromatic aldehydes followed by their condensation with 1-(2-aminoaryl)pyrrole. Optical properties of newly synthesized pyrrolo[1, 2-a]quinoxaline derivatives have been systematically investigated in solution as well as in solid state.