KAl(SO4)2.12H2O as an efficient and reusable catalyst for the synthesis of quinoxaline in solvent-free condition

1,2-Diketones have been reacted in one-pot method with 1,2-diamines at room temperature with KAl(SO4)2.12H2O as a catalyst. Alum KAl(SO4)2.12H2O as an available and reusable catalyst is disclosed for the synthesis of Quinoxaline in improved yields.