A new rapid multicomponent domino heteroannulation of heterocyclic ketene aminals: solvent-free regioselective synthesis of functionalized benzo[g]imidazo[1,2-a]quinolinediones.

A new rapid multicomponent domino heteroannulation of heterocyclic ketene aminals: solvent-free regioselective synthesis of functionalized benzo[g]imidazo[1,2-a]quinolinediones.