Transition-Metal-Free Synthesis of 2-Arylimidazolones via Cascade Reaction between Arynes and α,α'-Disubstituted α-Isocyanoacetamides.

The reaction between arynes and secondary α,α'-disubstituted α-isocyanoacetamides was developed to access 2-arylimidazolones of structural diversity and complexity in a straightforward manner.